Low oil pressure cummins isx - I don't recall ever making a delete video. In fact, I would never make a delete video. next,.... 18-20 psi at idle is normal for an ISX with 34-38 above 1000 rpm depending on oil temps. cummins spec is anything above 15 psi at idle. If your oil pressure has fallen off then change the oil a second time and the filters.

 
Cummins..22-26 psi with the engine temp at 180 oil temp..oil pump. 2007 ihc 9900 500hp isx cummins has low oil pressure with high oil temp. The highest oil psi is 29 but runs 22-26 psi with the engine temp at 180 oil temp will be 220 and if you have heavy loads the o … read more. DR.Cummins.. Craigslist enumclaw washington

Replacing Cummins isx oil pressure sensorPart # 4921517Tools needed: Ratchet (1/2 or 3/8)Long extension (1/2 or 3/8)Swivel (1/2 or 3/8)Socket (1-1/16)suppor...IMA KEEP IT REDNECK. Oct 26, 2018. #3. Ok. 3 things cause this issue. 1 plugged fuel filters, 2 the pressure relief valve in the back of the head bypassing fuel, and 3 injectors or fuel transfer tubes leaking past into the return. If it’s been a while since you changed filters I would start there and drive it.Jan 18, 2017. #4. Oil pump failing, oil pump pressure relief valve failing, bad crank, connecting rod or cam bearings are about the only sources for low oil pressure. A bad …Advertisement Oil-fired burners are used in many parts of the country as the basic heat source for warm air and hot water heating systems. Most of the home oil systems in use today...This is a 2010 ISM engine. Please note that the ISX engine sensor location will be slightly more to the rear of the engine on the drivers side look for more ...May 27, 2011. RI. 0. got a 388 pete with a 600 isx cummins. Half way through a service the truck will start losing oil pressure on the highway to around 26 psi and sometimes lower causing the engine shutdown lite to come on. If i change the oil filter the pressure is fine. Cut open filters 1 out of 4 were plugged.Aug 29, 2015 · The pressure can drop on a good engine to 10psi on a hot engine and it is still in the good range. This drop was the cause that Dodge put in the computer controlled guage to stop complaints about the oil pressure. You said that the pressure will drop to 20psi at idle. That is normal and a good pressure. 12-14-2017, (Subject: Isx oil pressure drops when let off throttle ) Post: #1. Kevinb3373 Established (0 Likes) Posts: 5 Joined: Dec 2017 : Isx oil pressure drops when let off throttle . New member, need help. I have had 2010 prostar with cummins isx for 3 yrs. 778000 miles, have done the egg, dpf delete. ...ISX (EPA 07) View Specifications Request a Quote. Power. 385 - 650 hp 287 - 485 kW. Torque. 1450 - 2050 lb-ft 1966 - 2779 N•m. Product Availability. North America, Africa Middle East, Latin America, Asia Pacific, Europe. Select an application.It's been about 10thousand miles since my last oil change in my 2009 ISX and I just started getting some low oil readings to. I just changed my exhaust back pressure sensor a week or so ago and that's been helping greatly. When I accelerate or am at cruzing speeds of 1200-1300 rpm's my oil pressure is fine, reading about 35-40 psi.Jul 13, 2022 · BUY THIS Cummins ISX Oil Pump Assembly TODAY!!! https://tinyurl.com/2n9j64vyGet the right oil pump assembly for your engine & speak to one of our ASE Certifi... low oil pressure at idle. 2003 2500 2wd auto, 355k miles, idles around 650 to 700 rpm. After engine warms up to the 195 to 200 range the oil pressure will randomly drop well below 10psi while truck is idling. while driving pressure is around 60psi. When I come up to stop light I'll hear ding, and check gauges light comes on.May 27, 2011 · Cummins has relised 4.25, 4.5, and 4.75 wedges to advance the timming as needed. As of right now all the CM871 ISX problem engines ( plugged oil fiters, plugged dpf and doc, low power/sluggish) I have measured static timming on have been retarded. If you have access to Cummins quickserve you can look up static timing specks by engine CPL. If the oil pressure gauge on your Toyota is fluctuating or not working at all, the oil pressure sending unit may be the cause of the problem. The first thing to do with any oil pre...Mar 20, 2015. #1. Have 600 horsepower cummins 380000 miles just had oil change start the day with 40 oil pressure but during the day oil pressure kept getting a little lower finally started pulling a load up the mountain oil pressure was down to 20 and loosing power finally got to the top and the high exhaust temperature system light came on ...I got a Cummins ISX15 that’s been having some oil pressure issues. Only thing is I haven’t actually pulled the head off and actually dug deep into it. So the problem before I took it out of the truck was that the oil temperature would rise to 235 sometimes even 245 super fast. Oil temps would get to 235 during parked regens when it was 90 ...Signature and ISX CM870 Key Switch Battery Supply Circuit Section 19 — Electronic Engine controls Page 19-55. Intake Manifold Pressure Sensor (019-061) Remove. Slide the locking tab on the top side of the connector to the unlock position. Press down on the tab near the end of the harness connector where the harness wires lead into the connector.ISX (EPA 07) View Specifications Request a Quote. Power. 385 - 650 hp 287 - 485 kW. Torque. 1450 - 2050 lb-ft 1966 - 2779 N•m. Product Availability. North America, Africa Middle East, Latin America, Asia Pacific, Europe. Select an application.Advertisement There are two LP gases that can be stored in liquid form with only moderate pressurization -- propane and butane. Isobutane, which has the same simple chemical formul...What causes low oil pressure in a cummins isx? Updated: 10/19/2022. Wiki User. ∙ 9y ago. Best Answer. Compromised oil system, faulty engine oil rifle pressure 1 sensor.The ECM sensing low pressure at the sensor will usually alert you that your oil pressure is low. Low oil pressure can also be caused by other factors, such as the oil being changed for a long time. You might have a problem with the oil pressure sensor or the wiring. What amount of oil does a Cummins X15 consume? Fill the engine oil filter with ...The engine will run fine and strong but will be consuming oil. Cummins changed the design of the top of their liner after discovering this premature issue to prevent the carbon build up on the top of the piston edge. ... The Isx engine is a high flow, low oil pressure system , I have a cm 871 and the oil pressure at idle is around 15 - 20 psi ...12-14-2017, (Subject: Isx oil pressure drops when let off throttle ) Post: #1. Kevinb3373 Established (0 Likes) Posts: 5 Joined: Dec 2017 : Isx oil pressure drops when let off throttle . New member, need help. I have had 2010 prostar with cummins isx for 3 yrs. 778000 miles, have done the egg, dpf delete. ...If you own a Waterpik and are experiencing low pressure issues, don’t worry – you’re not alone. Low pressure can be frustrating, but luckily, there are several troubleshooting step...The oil pressure relief valve in a 5.9 Cummins engine is located at the oil pump outlet. It opens when the engine oil pressure reaches a certain value and ... Low oil pressure in a diesel truck can be caused by low oil levels, burning by worn piston rings, evaporation, or an unknown leak. ... The oil pressure at idle for a Cummins ISX engine ...12-14-2017, (Subject: Isx oil pressure drops when let off throttle ) Post: #1. Kevinb3373 Established (0 Likes) Posts: 5 Joined: Dec 2017 : Isx oil pressure drops when let off throttle . New member, need help. I have had 2010 prostar with cummins isx for 3 yrs. 778000 miles, have done the egg, dpf delete. ...This is a 6.7 in a 2019 Solaris bus, has 175k KM or a little over 100k miles on it. We have three buses, one engine is already gone with nearly 1300 hours of low oil pressure in severity 1. That's between 83-55 kPa. Second bus has 420 kPa at idle cold startup and drops down to 70 kPa hot. ECU has logged over two hours with pressure under 34 kPa!!Apr 24, 2024 · I don't recall ever making a delete video. In fact, I would never make a delete video. next,.... 18-20 psi at idle is normal for an ISX with 34-38 above 1000 rpm depending on oil temps. cummins spec is anything above 15 psi at idle. If your oil pressure has fallen off then change the oil a second time and the filters. Oil Pressure Relief Valve Cummins ISX (4357177) 4357177D. $19.90. Shipping calculated at checkout. Low stock - 3 items left. Add to cart. Pickup available at DDTP STORE ONLINE.Penetrating Oil is a low-viscosity oil that is useful to help free rusted parts, such as nuts on a bolt, to aid in removal. The name comes from the oil being able to penetrate into...Dr. Cummins, I have a Cummins ISX CM870 ESN:79186190. Engine seems to surge when under a load. EGR valve opens and closes only from 0-15% and seems to correspondence with the engine surge.Dozens of problems can cause engine oil burning. First, determine if your oil is actually being burned or whether it's simply being used at a higher-than-normal rate or leaking. Sy...If you own a Waterpik and are experiencing low pressure issues, don’t worry – you’re not alone. Low pressure can be frustrating, but luckily, there are several troubleshooting step...I have been scratching my head working on an ISX. About every 2500miles the oil pressure goes down to about 20psi. Replace the oil filter and pressure pops back up. I have seen this before, but it's usually caused by extended oil drain interval, or something mechanically wrong.Had leaked some oil into the harness. I replace the sensor and cleaned the harness. Same issue. Hooked up the mechanical gauge, same problem. 65 psi on cold start and then below 20 psi after working 6 hours into the day. I also pulled the oil pan, found some metal in the bottom. I replace all the rod and main bearings.Signature and ISX CM870 Key Switch Battery Supply Circuit Section 19 — Electronic Engine controls Page 19-55. Intake Manifold Pressure Sensor (019-061) Remove. Slide the locking tab on the top side of the connector to the unlock position. Press down on the tab near the end of the harness connector where the harness wires lead into the connector.Jul 14, 2016 ... cummins isx 15 oil pressure sensor fix, removal and installation. ... What Causes Low Oil Pressure ... low Oil Pressure Cummins, Diagnose and Repair ...Feb 5, 2020 · Crankcase ventilation system: The Cummins ISX ’s advanced crankcase ventilation only needs replacement after every third or fourth oil change, allowing for more prolonged operation and more use. Cummins Intebrake™: The Intebrake™ can reach up to 600 braking HP, which helps control the machine and reduce brake wear. Advertisement There are two LP gases that can be stored in liquid form with only moderate pressurization -- propane and butane. Isobutane, which has the same simple chemical formul...Volvo ISX Cummins low oil pressure. the problem was the oil filter.WARNING!!: ⚠️⚠️⚠️Always use the proper tools and safety equipment to perform this job. Failure to perform the job correctly can result in personal injury or ...Like I said I recently rebuilt my 2006 cummins isx. Oil pressure before rebuilt was close to 40 psi when running and now after rebuild its 30 psi. 30 psi is under …All vehicles use an oil pump to pump and pressurize engine oil. An oil pump ensures that oil stays moving and flowing throughout all parts of the engine during operation. A malfunc...The oil pressure relief valve in a Cummins ISX engine is located at the oil pump outlet, just below the turbo where the filter housing is. Its purpose is to open when engine oil pressure reaches a certain value, allowing oil to bypass the filter and relieve excessive pressure. If the relief valve fails or becomes faulty, it can lead to various ...2009 Cummins ISX CM871, rebuilt with new oil pump 150,000 miles ago. had normal Oil pressure Idle 20psi 1300rpm 40psi Then one day after pulling a grade I noticed high oil pressure 1300rpm 60psi and fluttering up/down After I shut down for a few hours, I started the truck and ran 6 hours home while it had normal pressure 20 idle/40 @1300rpm1. Check the sensor location: The exhaust gas pressure sensor 1 is typically located above the front section of the exhaust manifold on the driver’s side of the engine, towards the front of the head. 2. Inspect for physical damage: Examine the sensor for any signs of physical damage, such as corrosion, rust, or loose connections. 3.The low oil pressure is usually temporarily corrected by a filter change. Usually leaking EGR valves throw EGR temp too high, Turbo inlet temp too high and can cause excessive regens. Usually the first thing to do is make sure your EGR differential pressure sensing tubes are clean, and that the venturi pipe is also clear so the EGR differential ...New Covid infections appear to be surging in China due to the rise of the XBB sub-lineage of the Omicron variant....PFE How many days... are left in May? "Not enough" might be the ...This check is only done once after the keyswitch is turned ON. Possible causes of this fault code include: • Stuck in-range engine oil pressure sensor reading. • High resistance in the engine oil pressure sensor signal or return lines. Read More: SPN 558 - FMI 13 (Fault Code 432) SPN 100 - FMI 2 (Fault Code 435) B.©2014 Cummins Turbo Technologies Ltd. Dirty oil damages the turbocharger by causing heavy scoring of critical bearing surfaces. To avoid damage, oil and filters should be of a quality ... Broken or restricted oil feed pipe Low engine oil pressure due to malfunctioning lubrication system Low or no oil in sump The use of sealants, which can ... 2010 Cummins ISX 450 Low Oil Pressure Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Noles2013, Nov 10, 2018. Nov 10, 2018 #1. Noles2013 Bobtail ... Brandon42. Like. rjp. 7008 posts · Joined 2009. #3 · Oct 19, 2013. I would suspect your rail plug is not sealing off. Pull the rail return line on the side closest to the front and see if its by passing fuel, should be none. If its not bypassing there i would check the return from the back of the head as well.first time replacing one of these gear pumps in a very long time.gauges really helped me out with this one.contact : [email protected] fuel pressure sensor on the Cummins ISX engine is located above the front section of the exhaust manifold and is plumbed into the exhaust manifold. It is ... If the fuel pressure reading is too low or too high, there may be a problem with the fuel pump, fuel pressure regulator, or other components in the fuel system. ... The oil pressure ...2008 cummins isx 15 the oil pressure is dropping random, if i turn off the engine turn back on after 10 sec everything is normal for a random time then again drops, change the oil filter helps for 3000-7000 miles than the same thing, work done : last 10000 miles new oil pressure sensor new crank bearing, new oil pump , 50000 miles egr valves turbo actuator, 100000 miles all dpf system new with ...The Cummins ISX lower engine gasket set is a set of gaskets that seal the lower part of the engine, including the oil pan, timing cover, and lower cylinder block. The gaskets are made of materials like rubber, cork, and metal, and they prevent oil and coolant leaks from the engine. The gasket set should be replaced when there are signs of oil ...The exhaust gas pressure sensor is a critical component of the Cummins ISX12 engine. It is responsible for monitoring the pressure of the exhaust gas and transmitting data to the engine control module. Regular maintenance and inspection of the sensor are essential for optimal performance and to avoid potential issues.My 2010 Cummins ISX 450 lost oil pressure today. Dropped down to about 15psi and never went any lower or higher. Did not get any codes or engine warnings. Did not lose lower either. I did notice a slight winding noise somewhere behind the fan, Jacobs brakes stopped working as well. Any help will be greatly appreciated.Jan 14, 2018 · Low Oil Pressure normally will cause the engine to shutdown. Check Engine Light is not uncommon on Cummins powered coaches and is usually caused by some intermittent electrical issue that causes the light and buzzer to engage and derate the engine but after shut down and restart it clears. One thing I have found that helps reduce the frequency ... Cummins ISX12 350vCummins ISX12 350vReplacing Cummins isx oil pressure sensorPart # 4921517Tools needed: Ratchet (1/2 or 3/8)Long extension (1/2 or 3/8)Swivel (1/2 or 3/8)Socket (1-1/16)suppor...Additionally, the increased ash hold capacity of the Single Module aftertreatment system for the X15 Eficiency and Performance Series engines contributes to the extended DPF cleaning interval. 375110_Cummins_5410641.indd 1. 11/8/17 7:05 PM. CumminsLogo.pdf 1 5/8/09 2:43 PM. Truck Maintenance and Operation. X15 (EPA 2017)2. Bad Noises from engine. The other widespread symptoms of low oil pressure are rattling and other strange noises from the engine. The oil pressure prevents engine parts in the engine from rubbing metal against metal, and if the oil pressure is low, they will start rubbing against each other. This can create a horrible sound, and if you …Jan 17, 2017 · Jan 18, 2017. #4. Oil pump failing, oil pump pressure relief valve failing, bad crank, connecting rod or cam bearings are about the only sources for low oil pressure. A bad sensor or failing sensor can give faulty reading as well. Test with mechanical gauge for accurate pressure reading. Personally, I'd have an oil sample into the lab last week ... 2008 cummins isx 15 the oil pressure is dropping random, if i turn off the engine turn back on after 10 sec everything is normal for a random time then again drops, change the oil filter helps for 3000-7000 miles than the same thing, work done : last 10000 miles new oil pressure sensor new crank bearing, new oil pump , 50000 miles egr valves turbo actuator, 100000 miles all dpf system new with ...This can lead to overheating and potential engine damage. 3. Decreased fuel economy. A faulty EGR cooler can cause the engine to run less efficiently, resulting in decreased fuel economy. 4. Increased exhaust smoke. A failing EGR cooler can cause an increase in exhaust smoke, particularly white or blue smoke. 5.This is a 2010 ISM engine. Please note that the ISX engine sensor location will be slightly more to the rear of the engine on the drivers side look for more ...BUY THIS Cummins ISX Oil Pump Assembly TODAY!!! https://tinyurl.com/2n9j64vyGet the right oil pump assembly for your engine & speak to one of our ASE Certifi...Volvo ISX Cummins low oil pressure. the problem was the oil filter.2009 Cummins ISX CM871, rebuilt with new oil pump 150,000 miles ago. had normal Oil pressure Idle 20psi 1300rpm 40psi Then one day after pulling a grade I noticed high oil pressure 1300rpm 60psi and fluttering up/down After I shut down for a few hours, I started the truck and ran 6 hours home while it had normal pressure 20 idle/40 …This can lead to overheating and potential engine damage. 3. Decreased fuel economy. A faulty EGR cooler can cause the engine to run less efficiently, resulting in decreased fuel economy. 4. Increased exhaust smoke. A failing EGR cooler can cause an increase in exhaust smoke, particularly white or blue smoke. 5.This is a 6.7 in a 2019 Solaris bus, has 175k KM or a little over 100k miles on it. We have three buses, one engine is already gone with nearly 1300 hours of low oil pressure in severity 1. That's between 83-55 kPa. Second bus has 420 kPa at idle cold startup and drops down to 70 kPa hot. ECU has logged over two hours with pressure under 34 kPa!!An oil pressure gauge can fluctuate for many reasons, including an actual automotive problem as well as reasons like fluctuation in oil temperatures. In most cases, the gauge will ...One chemical plant was struck by lightening, and refineries are under water Oil refineries and chemical plants are 24-hour operations. They’re not designed to be turned off. But wh...Cummins ISX low boost high exhaust temps. I have a 2006 ISX cummins 530 hp with 433,000 miles on it. It is an EGR motor. Problem is lately since weather has started to cool up motor will sometimes loss boost of about 10 lbs and exhaust temp will climb to 1000 to 1100 degrees. You might drive 5 miles and it comes out of it.If you own a Waterpik and are experiencing low pressure issues, don’t worry – you’re not alone. Low pressure can be frustrating, but luckily, there are several troubleshooting step...Aug 30, 2017 · How to replace your oil pressure switch on a Cummins ISXThanks for watching ! I truly appreciate each view that I get on each and every video. For those that... Oct 28, 2023 · The oil pressure relief valve in a Cummins ISX engine is located at the oil pump outlet, just below the turbo where the filter housing is. Its purpose is to open when engine oil pressure reaches a certain value, allowing oil to bypass the filter and relieve excessive pressure. If the relief valve fails or becomes faulty, it can lead to various ... Feb 1, 2024 ... Cummins ISX Series Oil Pump: Website: https ... Cummins ISX ISX15 low oil pressure damage main and rod bearing problems.The exhaust gas pressure sensor is a critical component of the Cummins ISX12 engine. It is responsible for monitoring the pressure of the exhaust gas and transmitting data to the engine control module. Regular maintenance and inspection of the sensor are essential for optimal performance and to avoid potential issues.Customer: i have 550 isx cummins that was remaned by cummins 60000 miles ago. ever since new engine was installed the truck has low oil pressure,oil gets 250 on pull,engine temp stays normal. truck wi … read moreDec 12, 2011 · 2007 ISX in my KW oil pressure runs about 16 at idle and 35-40 under load.Temps are around 180-185 coolant and 215-225 oil Dakota1358 , Aug 18, 2014 Dakota1358 , Aug 18, 2014 Learn how to fix, remove and install the cummins isx 15 oil pressure sensor with full details and clear instructions. Watch this video to see the step-by-step process and the tools you need …

Feb 29, 2024 · I don't recall ever making a delete video. In fact, I would never make a delete video. next,.... 18-20 psi at idle is normal for an ISX with 34-38 above 1000 rpm depending on oil temps. cummins spec is anything above 15 psi at idle. If your oil pressure has fallen off then change the oil a second time and the filters. . Kelly blue book api

low oil pressure cummins isx

Isx oil pressure low? Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Vivaspin, Dec 19 ... Oct 2, 2020 0. Hello I have an international prostar with Cummins ISX and about 900,000 miles has had in frame overhaul about 250,000 miles ago I have had this truck for the past hundred thousand miles and my oil …Motor is clean as a whistle inside and oil with new oil and filter. Start motor and oil pressure is 45-50 psi and as the motor/oil warms up the pressure comes down. At 600 rpm and 220 temp on oil the pressure hovers at about 8psi and 20-22 psi at 1400 rpm. About to change oil cooler and t-stat to oil cooler. I’m ready to give up.Slight oil pressure drop after only 15-20k miles after oil has been changed (clogging filters). ... am burning 2 gallons of oil between oil changes of 15,000 miles? any help would be appreciated.I have a 2010 Peterbilt cummins 450 isx cm 871 Thanks Big Lou ... You should be having the blow-by checked. Low quality of oil will burn away …Learn how to fix, remove and install the cummins isx 15 oil pressure sensor with full details and clear instructions. Watch this video to see the step-by-step process and the tools you need …RE: Oil Pressure Relief Valve/Regulator. The picture on the right is of the updated oil bypass valve. It is located in the oil filter head. There is a 17mm allen plug that you remove and it is right behind that. If you have an early 2250, there was a campaign where they would send you the updated version free.So I just bought a kenworth with a ISX 485ST Cummins and I'm getting low oil pressure at a constant 20psi city streets and highway speeds. And whenever it it goes a little bit below the 20psi mark the engine goes crazy, the check engine light turns on and then the stop engine light turns on and after a half of min or so the truck turns off while running.Rawze.com: This is a multi-part series on me disassembling my engine and replacing the pistons, liners and such after the head developed a minor coolant leak...Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. engine shut down on I-5 Portland with low oil pressure light was able to restart about 1/2 hour later. was serviced in Olympia WA 471 miles ago at Cummings. Cummings service in Portland (5:30 PM on FWY) did computer check and said nothing ...Cummins ISX15 CM 2350 with no oil pressure. I just in-framed the engine. I modified the oil pump for higher pressure which in hindsight was probably a mistake. I shimmed the pressure spring 5/8 of an inch using washers. At first startup oil pressure was good. Surprisingly, the oil pressure was already higher than expected at idle (40 psi).Jan 17, 2013 ... Low oil pressure 12 valve Cummins ( how to fix / check ) ... Oil Pressure Gauge at 0 20 80 ... How to replace Oil pressure sensor on Cummins ISX .Recommended Low Idle 600 RPM Pressure Drop Across Oil Filter Maximum Allowable (with 15W-40 and 10W-30 oil at operating temperature) 172 kPa [25 psi] Oil Filter Capacity of Standard Engine Combination Full-Flow/Bypass Filter 2.2 liters [0.58 gal] (Recommended oil filter is FleetGuard LF14000 NN or equivalent) Oil Pan Drain Fitting Size M27x2 STORFault Code: 143. PID (P), SID (S): P100. SPN: 100. FMI: 1/18. Lamp: AMBER. SRT: REASON: Engine Oil Rifle Pressure - Data Valid but Below Normal Operational Range - Moderately Severe Level. Engine oil pressure signal indicates engine oil pressure is below the engine protection warning limit. EFFECT: Progressive power …low oil pressure at idle. 2003 2500 2wd auto, 355k miles, idles around 650 to 700 rpm. After engine warms up to the 195 to 200 range the oil pressure will randomly drop well below 10psi while truck is idling. while driving pressure is around 60psi. When I come up to stop light I'll hear ding, and check gauges light comes on.Isx cummins we have low oil pressure also over full oil level it does smell like fuel. 485 hp isx cummins in a 2010 - Answered by a verified Technician We use cookies to give you the best possible experience on our website.Sodium is a mineral that is essential for human health. It helps the body regulate fluid levels, blood pressure, and muscle and nerve function. Sodium is a mineral that is essentia...Step 3: Check/test the DPF pressure sensor. Inspect the sensor for any signs of damage or debris. Cracks and leaking components of the sensor are common due to the extreme heat on the plastic sensor. Also check the DPF pressure sensor tubes for soot build up, this is very common and causes the same issues. To clean you can just blow the tubes ....

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