BROKEN DOWN!!! LIMP MODE || Isuzu Mu-x/D-max Common Issue - P2453 Differential Pressure Sensor Fault

G'day Guys and Gals!
In this video I show you an issue that I had recently with my 2018 Isuzu Mu-x. My wife was driving the vehicle home from work when it went into limp mode with the engine light and traction control lights on. She drove to a safe spot and gave me a call. I went down to the break down with my OBDII scan tool and scanned the vehicle.
The vehicle had 1 engine fault code and 2 traction control fault codes which were subsequent codes because of the engine fault. The OBDII scan tool read out fault codes P2453 Differential Pressure sensor circuit range/performance. The Differential pressure sensors on the Isuzu Mu-x and D-max are a very common fault or issue. I have heard of quite a few differential pressure sensors failing on the Isuzu Mu-x and d-max.
I still have 2 months left on my vehicle manufacturers warranty so I was very lucky that it failed when it did and it was close to home. So the next day I booked the vehicle into my local Isuzu service department for diagnosis by them for warranty repairs. As I didn't have a booking I ended up leaving the Isuzu Mu-x with them hoping they could squeeze it in if they had a cancellation.
Later in the week on Friday afternoon I got a call at 4pm saying that the Mu-x was all fixed and ready to go! I was absolutely blown away by the customer service and work done by Pacific Gympie with this repair. They did outstanding work getting the vehicle in, diagnosed, warranty approved and repaired in 2 days without a booking.
So what failed? As I said before I have heard of the differential pressure sensors failing and that it was a common issue. The Isuzu service center replaced the Differential pressure sensor and the 2 rubber hoses that goes down to the hard lines on the DPF. They also carried out a DPF regen or burn off and checked that the system was functioning correctly.
So what does a Differential pressure sensor do? A diesel particulate filter (DPF) differential pressure sensor measures exhaust backpressure and signals when the power-train control module (PCM) should begin a regeneration process to clear the filter of diesel particulate matter (DPM), or soot. The DPF differential pressure sensor plays an important role in keeping the DPF functioning properly. A clogged DPF is not only a costly repair, but it can have catastrophic consequences to your diesel engine as well. To understand how the DPF differential pressure sensor works, why it fails, and how to replace it when it does, let’s briefly discuss the DPF.
The Differential pressure sensor failed on my vehicle with about 117k on the odometer. it through the fault code P2453 Differential pressure sensor circuit range/performance code. The range/performance codes generally mean that the electronic component has failed. Unlike open circuit, short circuit codes that can lead to wiring issues or power and earth supply issues. The range/performance codes generally mean that the sensor is getting its power and earth and signal back to the ecu but the signal is out of range or there is an issues with the signal.
The Differential pressure sensor has 2 rubber hoses that go down to the hard lines on the DPF. The hard lines then go to the top and bottom of the DPF to measure exhaust pressure and the difference in pressure to enable the ecu to calculate the soot loading of the Diesel Particulate Filter. The rubber hoses run close to the exhaust system and can potentially deteriorate over time. The Isuzu dealer replaced the differential pressure sensor and the rubber hoses with this repair.
Luckily I had 2 months left on my warranty and this issue has been fixed by my local Isuzu dealer. If you have had any issues please let me know down below and we can work together on getting them resolved :)
Disclaimer:
Due to factors beyond the control of Lowrangenick, I cannot guarantee against improper use or unauthorized modifications of this information. Lowrangenick assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Lowrangenick recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Lowrangenick, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Lowrangenick.
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#DPF #isuzumux #isuzudmax #faulty #failed #limpmode #isuzu #faultcode

[@melissacraddock4463]

Going through this right now it’s with the mechanic. Looked up the problem and your video pops up and as soon as I saw the name I recognised it. My partner Vik (Bribie Island)caught up with you a few years ago and followed you on KZbin as well as other domains as he loved his mux. I’m driving it now as unfortunately he suddenly passed away in January.

[@LowRangeNick]

Hi Melissa, I am shocked to hear that, I remember meeting up with Vik a couple of years ago. He was such a nice guy! Im so sorry for your loss. You and your family will be in my thoughts. I hope the mechanic can get your car up and running well again for you. ❤️

[@brendan636]

Ahhh the great feeling of owning a pre-DPF model

[@ronoricco]

Great video Nick. I had this happen today. 2017 MUX. Dealer unfortunately not as sympathetic. They were able to do the job for $1350 so Merry Christmas to me! Keep up the good work!

[@FastFless]

Nick - had exactly the same problem just over a month ago (2017 D-Max - 200,000km). Unfortunately well out of warranty. Good video.

[@masterdeeds]

Glad it got sorted under warranty. Pacific is my new service centre and have been really happy with them. About to take it in due to a overpowering rotten egg smell. Hopefully all covered under warranty.

[@JeffJeno1000]

Really good to see you give your local dealer good praise 👍 Isuzu are great to deal with. I had a Ford before the DMAX, let’s just say Ford Dealerships took the fun out of owning a Ford 😂

[@craigtomkinson2837]

Lovely Ep and tip.

[@sammyold4708]

My dmax did the same last week. We did a dpf delete. Almost everyone i know with a modern diesel has had dpf limp mode dramas

[@shooters70]

Had the same issue in my 2018 MU-X. got it changed under warranty and back the same day. I now carry the scan tool in the car at all times.

[@ChrisDimo]

Would be good if you did a show on how the dpf works (not including the dpf sensor fault). How often should regens occur. And how to clean your dpf

[@SKRussia]

Отличная работа, и отличное видео

[@veteransadventuresaustralia]

Glad they sorted it out, I have heard they have a new replacement turbo coming for the 17-20 4jj1 with the turbo issue

[@stephendouglas1911]

They dont, just like the green dot, the new part no turbo is also failing. It's BS. It's still the same turbo.

[@willemvantsant5105]

My late 2016 mux just missed out having a DPF,so lucky, one less thing to worry about. Good luck with yours.

[@fnaust]

Good to hear! Just bought a 2016 MUX for my wife, do you know when they introduced the DPF?

[@willemvantsant5105]

2017

[@adzoutnabout8666]

Thats the biggest problem with modern day vehicles….. too many bloody sensors to malfunction.

[@krump743]

My dpf sensor went kaput. Limp mode back to the dealer. They had it for 2 weeks. Dpf sensor changed, and the two hoses replaced.

[@jessesaunderson7927]

Could you tell me what side of the dpf sensor each line goes to from the dpf. I have changed my sensor and still getting same issue? wondering in the lines are wrong way around

[@johnbravo7542]

Hey Nick thank's for these videos,I have the 2021 Single cab Chassis ute,it's been great,but unfortunately the clutch master cylinder or slave not sure what it is yet but just getting small leakage from above the clutch peddle,in the cab,very anoying,not losing any clutch pressure,it's booked in tomorrow.Have you heard about this by any chance? another thing I had noticed is unusual outter edge of front tyres wearing,so hoping my dealer can look into that.

[@LowRangeNick]

If it's leaking into the cab it sounds like a faulty seal in the clutch master cylinder. Hopefully, the warranty will sort it out for you.

[@intimatespearfisher]

As a colorado 7 owner, this kind of makes me feel better about having to do the timing belt. Looks like you pay either way?

[@neilbates8409]

Hi Nick great video thanks. I have the same Mux as you 2018. Do you think it’s wise to buy a DPF sensor take with me as I travel the country. I have a scan gauge so I can delete codes etc if needed. Thanks

[@LowRangeNick]

It probably couldn't hurt to do that. If you are travelling in remote locations it would be very very very frustrating to be put in limp mode with a top speed of 50-60 kmhr and no power.

[@BenMitro]

It seems to me that sensors fail far more often than the item they are sensing.

[@joeherbert4039]

exactly. the sensors they put on earth moving equipment these days renders them useless for no real reason, except to protect a component, and with no warning and 4wd are the same. Imagine that sensor dying in the Simpson , or anywhere, if you couldn't figure out how to bypass , and/or trick it into letting you carry on.

[@ianro8065]

Just wondered what scan tool your using

[@GMguy01]

So the actual cause of the sensor failure is the rubber hoses breaking down and damaging the sensor, hoses must be replaced with the sensor. There is a service bulletin for it and extended warranty coverage, it affects old shape and new shape dmax and mux

[@davidarmstrong3866]

Hi Nick great videos and advice. I have a 2017 Mux with 108,000 klm, it does a regen approximately every 130 klm and has for the last 78,000 klm. I have reported it to the Dealer at every service, their answer is that all is Ok and just keep an eye on it. Ive also reported that the DPD graph reaches the first bar at the 100 klm then over the next app 40 klm the bar graph fluctuates up and down then starts a Regen. I do a lot of short trips ( school drop offs ) with a couple of trips a year, on a recent trip from Newcastle to Sunshine coast and Back it did a Regen app every 100Klm on the highway at speed limit. The Mux runs well is good on fuel and meets all my needs I'm just concerned about the life of the DPD. Any advice would be appreciated.

[@LowRangeNick]

Hey David, that does sound like it's burning off a bit more regularly. Mine usually burns off every 250-350km. Maybe it could be pointing towards a failing differential pressure sensor?

[@effbee56]

DPFs do not seem to be compatible with multiple short slow runs. So not the best choice as a mummy wagon.

[@AlexSwan]

Are you going to do a DPF delete via blanking plate or Munji once out of warranty. Opinions seem very divided on the subject. Not much in between hell yeah and do not touch.

[@LowRangeNick]

I don't plan on removing the DPF. The vehicle was built to run with it, so I will keep it how it is. It's also illegal and massive fines 🤣

[@Razza2250]

Munji sell EGR blanking stuff. They do not sell a DPF blanking plate, as that would be better known as a "entire exhaust system blanking plate", which is usually inadvisable to fit 🤣

[@user-yh2vi6cw7c]

I had the same thing happen to me while I was towing my Caravan on a steep hill on Mount Ousley rd. NSW. The car & van got towed to the nearest mechanic. He cleaned all the sensors. The car is going into isuzu to be repaired, but unfortunately, I have no warranty.

[@DMan-it5tq]

I live nearby. Not a good hill to break down on 😮

[@louiskudlak2241]

Scan tools r very valuable, I thought u had 3 codes

[@LowRangeNick]

The other 2 codes in the traction control were because of the engine fault code and limp mode.

[@ChristianJamesK]

Was going to ask the same but thought I’d read the comments section first. Is a DPF sensor and hoses something that can be added to the Spares kit if traveling?

[@krump743]

@@ChristianJamesK the hoses are just changed by isuzu cause thats what they say can cause issues, over time they perish and collapse. I reckon in a pinch, changing the sensor only can get u outta trouble.

[@petermahon8343]

Hey there mate. I see you have a catch can fitted. As your vehicle was under warranty, did the dealership question the catch can.

[@LowRangeNick]

No issues 👍

[@user-yh2vi6cw7c]

I found it out, what was wrong with my. DPF ? It was the I drive control affecting the throttle control . So I remove the throole control for now to see if it happen .

[@harviedesilva454]

Hey there. I was just wondering if you have any update about this throttle controller issue? Did the problem go away after removing it? Thanks!

[@davidlmorgan9450]

Same thing happened to me it was done within a day .

[@roodog4wd]

Hi Nick. What were the ABS faults. I recently had a brake flush from Pedders, and the ABS was not working. Had to reset codes but was not told what they were or what caused them.

[@LowRangeNick]

It was just because of the engine fault and limp mode.

[@guttormamli3473]

Hi. My dmax 2016 mod. Warninglight for traction control abs esp is yellow and handbrake light is red. Can someone give me a hint to help me 🙂.

[@jolyonrussell7021]

I just purchased a new MUX, I will keep this common fault in mind -- what are the other common faults?

[@LowRangeNick]

Hi there, you can check out my common issues video here for some more things to look out for - kzbin.info/www/bejne/f6m6dZJ7h8uMgJI&feature=share9

[@jeffgreaves1559]

Hi Nick what does the light with a car and a spanner mean the owners manual doesn't give any information on it

[@LowRangeNick]

I would think it is a service light or a see dealer light.

[@aussiecue]

Happen to my 17 Dmax a few years ago. was all good but lately it seems to do a burn twice as often as I remember. IE two times per tank instead of once per tank. The DPF level indicator seems to go up or down depending on speed. Not in warranty now . Do you think I should put a new sensor in?

[@einfelder8262]

Why not - it's a cheap piece and very easy to fit.

[@aussiecue]

Yep, Every 700-800 K's I do a lot of Tweed heads to Brisbane runs. Probably three times a week. Now it will burn every 300-Ish K's @@danejames7098

[@einfelder8262]

@@danejames7098 City driving?

[@shagenshifter122]

Or just do a dpf delete 😮

[@aussiecue]

I used Penright DPF cleaner in half a tank and it solved it straight away. @@shagenshifter122

[@guywalker3907]

Complete of topic mate. But I have a2015 dmax. When ever I sink my boot into it. It will buck and jolt like it doesn’t know what gear to be in. If I accelerate steady it won’t do it it’s only when I accelerate hard.

[@LowRangeNick]

Could be a lot of different things. Could start with the simple things like fuel filter and cleaning air flow meter and replacing air filter? Scanning the vehicle may also show a fault code that might pin point where the issue or checking live data on an obd2 scan tool could help narrow down the issue. Unfortunately it could be a hundred different things and it's difficult to diagnose without seeing the vehicle.

[@travellingdave80]

Check the colour of the oil on your dipstick as they need to do an oil change after a forced dpf regen champ.

[@ChrisDimo]

Same issue on my DMAX, replaced under warranty even though vehicle was out of warranty

[@jakewatt9236]

How far out of warranty was it? Mines 2 months out of warranty and just having the issue now

[@ChrisDimo]

@@jakewatt9236 about 2 years or so

[@jakewatt9236]

@@ChrisDimo i checked mines 1 year and 2 months out of warranty. How did you manage that?

[@ChrisDimo]

@@jakewatt9236 The dealer just said it was a known fault and that they would replace it under warranty. this is the isuzu bulletin number you should point your dealer to DPF - Warranty, service codes - the bulletin number is S2022-10 release date is the 08/08/2022. Concerns codes P2002 and P2453

[@Tassie1966]

I have a 2017 D-Max 106000 on the clock no problems yet but after watching your video I thought I'd purchase a spare to carry with me until I found out the price $750 the guy in the spare parts said Isuzu are aware of the problem and there was a pretty good chance when it failed I would have it fixed for free I said that the ute was 2-years out of warranty he said that would be ok because it is a known problem I would still like to have that in writing then being told over the phone. I have heard Isuzu are pretty crap when it comes to warranty Has anyone ever used the aftermarket sensors off eBay ??

[@lengerer]

My 2018 dmax had a coolant leak from the cam chain cover. It was a 4k repair back in 2018. Was covered by warranty even though I service my own ute. So Isuzu warranty was great in my case

[@dougsullivan3564]

If we wanted to change this as a preventative measure how often should it be done, as in in X number of kilometers?

[@einfelder8262]

Just carry a spare in the car. Looks like a 5 minute job to replace roadside. Of course you need a Scangauge or similar to tell you the code before you clear it.

[@LowRangeNick]

Well I just had somebody message me saying they had theirs fail at 35k and I'm at 117k in my mu-x so I'm really not sure to be honest. Carrying a spare may be the best option?

[@dougsullivan3564]

@@LowRangeNick good advice. Say have you done a video on spares Mux/Dmax owners should have and a recommendation of tools for field/ bush repairs?

[@deankhieu]

@@LowRangeNickI have 40,000km on a 2019 mux. That error just came up on my scanner after seeing the engine light pop up. Hoping I still have warranty

[@chenderson4969]

My 2018 DMAX has played up on me today, started on 3 cyls dropped down to two and eventually conked out now winds over but sounds like it has no compression and sounds very different to how it normally sounds cranking. Going to have a look tomoro with the scan tool. Is this something youve come across before?

[@LowRangeNick]

Doesn't sound good! Not something I have seen unfortunately. Hopefully compression is OK and it's just not getting fuel like a suction control valve failure or something.

[@chenderson4969]

@@LowRangeNick the other day it had a dowey cyl I could hear when cranking but started then came good after a little bit of idling. I can’t understand how it’s now cranking differently to how it was the other day when it ran fine after a bit. I guess we’ll see!

[@LowRangeNick]

@chenderson4969 ahh ok sounds like an injector issue. Hopefully it hasn't done any damage.

[@chenderson4969]

@@LowRangeNick its going on the tilt tray in the morning 👍 see how we go I guess.

[@padiousman1209]

2013 model Dmax here. The car does many sudden acceleration hesitations. No one can find the cause. Is there any case th dpf to be the cause?

[@LowRangeNick]

2013 model doesn't have a dpf.

[@padiousman1209]

@@LowRangeNick It has. I live in Europe. 4jk1e5s-l

[@stevegoodwin5841]

Limp mode, maybe derated mode versus limp mode is apparently the right term according with another mechanic in our FB group. Limp mode is even more derated than derated mode. A relearn of the new sensor via the OBDI port was required too. Been there and done that.

[@Gothpuncher]

Did they give you an idea of what it would have cost outside of warranty?

[@LowRangeNick]

I think the genuine sensor is pretty expensive. Like 1k plus. You can get cheaper aftermarket ones though.

[@krump743]

700 hundred for the sensor and 400 for hoses genuine parts. 1200 all up fitted by isuzu. Absolute rort.

[@jamestanner9198]

Who did you pay off at Isuzu ? That's amazing Usually bad on warranty work.

[@krump743]

Hes an influencer mate. Normal citizens are treated like shit lol

[@baronvonaux8294]

I’ve had zero problems with Isuzu warranty work.

[@thomo1600]

Trust me guys and girls, one sensor issue is not a bad thing you should see what the transport maintenance industry has to put up when it comes to trucks worth 350k upwards with sensors failing early kays?I'm from the old school of diesel black smoke blowing from the pipes but breath it in glad dpfs /egr have stopped that get used to technology that still allows us to keep driving diesels there is now w 1:40 ay I'd go petrol or evs move with the times👍

[@intimatespearfisher]

You're spot on mate. Remember the brown haze over Brisbane CBD in the 80's and 90's? That seems to be a thing of the past.

[@AlexSwan]

Do they know who you are and that you have a KZbin channel dedicated to Isuzu? I’d say that would have helped a bit. Takes weeks if not months to even get a service at Frizelles usually.

[@LowRangeNick]

I'm really not sure. I have never said anything to them and I don't have any stickers on my car so I don't think so? 🤔

[@bluedunn374]

No DPF = No problems

[@user-yh2vi6cw7c]

I had the same thing happen to me while I was towing my Caravan on a steep hill on Mount Ousley rd. NSW. The car & van got towed to the nearest mechanic. He cleaned all the sensors. The car is going into isuzu to be repaired, but unfortunately, I have no warranty.

[@richardwalsh5570]

2022 Toyota Fortuner 1GD has been no issue. Works sweet as automatic or push button. Burns every 280 km automatically

[@roger_VK2VRK]

'quick that KZbin isuzu guy has called, cancel all other jobs and get it fixed pronto' Jokes aside, you were lucky they did it pronto without issue.

[@baronvonaux8294]

No problem except for the highly carcinogenic heavy particle matter you are creating in every day.

[@yusufozzy]

😂😂😂😂​@@baronvonaux8294

[@nott_charlie4852]

How many kms has the car done ?

[@LowRangeNick]

117k 👍

[@donaldjohnstone6357]

What model is your MUX

[@LowRangeNick]

2018 👍

[@chrro466]

Why is it failing on such a young vehicle ?

[@LowRangeNick]

My vehicle has 117k on the clock and is almost 5 years old. The sensors also passes hot exhaust gas into them and live right next to the exhaust. They are unfortunately a common issue on multiple vehicles not just the isuzu.

[@chrro466]

@@LowRangeNick it’s almost worth thinking about trading in our existing vehicles before the manufacturer warranties expire. The cost of repairs is escalating and the longevity of these current build vehicles is diminishing with each new model. I’m going to run my 2010 pajero into the ground and hopefully it’ll outlast me 😁

[@andrecampbell5893]

Dpf vehicles aren't made for daily driving short trips....

[@bruceturner5199]

Surely Mu is pronounced like the Greek letter Mu and not "Em You"?

[@LowRangeNick]

Isuzu mooooo x 🤣

[@bruceturner5199]

@@LowRangeNick yep. Just a little bit shorter in the Moo...and maybe a bit more like Meoo.

[@LowRangeNick]

@@bruceturner5199 haha the Isuzu meow ex

[@troyharpley6358]

Great mate it's a shame SINCLAIR AT KINGSWOOD wasn't as good as your dealer they had our mux for a week after it went into limp mode and did nothing but used the car as lunch truck we got it back no diesel and filthy and they only cover you for a certain amount of the cost on the warranty for parts the good bit is the mechanic told me what was wrong with car on the sly and we paid to have it fixed by a reputable diesel mechanic our self .ps cars great isuzu warranty and extended warranty is shit mate.

[@AndyL940]

I’m wanting to buy a 2015/16 Dmax from all accounts they are supposed to be very reliable . Would anyone happen to have experience with the older model ? I’ve been driving a 2000 model hilux for 14 years without hardly touching it. Perhaps I’ve been spoiled 😂

[@AndyL940]

@@danejames7098thanks very much for replying 👍

[@chrro466]

Just keep the Toyota it’s barely run in. These “modern”technology vehicles are too complicated and fragile now.

[@AndyL940]

@@chrro466 your not wrong. It’s the 5L 3 litre . I bought it with 205k now it’s done 423k I’ve hardly done anything except service it well . I drive it daily. I need something with air bags after neck surgery.

[@chrro466]

@@AndyL940 that’s a shame, all the best with finding your replacement vehicle. The earlier D max’s are a good choice. Unfortunately here in NZ a lot of them have similar mileages to your Toyota. 🤙🏼🤙🏼

[@bluefunkenator]

2016 pre-DPF dmax manual - at around 100k, the only issue I have had is replacing the EGR.