Limp Mode - Nissan Navara YD25 - SCV Replacement

In this episode I'm installing a suction Control Valve on a Nissan Navara D40 to fix an issue with the common rail fuel system.
My truck had gone into limp mode and after some research I discovered that this is a common culprit for most common rail diesel engines.
This is all part of preparing my vehicle for overland expeditions in the future & in my mind, knowing how to maintain a vehicle is essential.
TOOLS NEEDED -
'
Small Ratchet with 10mm Socket or 10mm Ratchet Spanner
5mm Alan Key (or ratchet bits)
REMOVE NEGATIVE ON BATTERY FOR 90 MINS PRIOR TO STARTING
To carry out the fuel pump reset carry out the following -
Turn ignition on so all dash lights come on.
Wait 3 seconds
PUMP accelerator pedal 5 times within 5 seconds....
with foot now OFF accelerator wait 7 seconds...
After 7 seconds press and hold down accelerator pedal for 10 seconds...
After 10 seconds the Engine Management Light will start to flash, at this point remove foot from accelerator.
The Navara is now in diagnose mode, so let the EML flash for a bit. the press and hold the accelerator pedal down for more than 10 seconds..this will then reset ECU and fuel pump etc......and put them into learning mode.
Inspection Cam - amzn.to/3arhe2z
#navara
#scv
#limpmode
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[@PrimalNomad]

My new cylinder head & gasket restoration and repair video is now live! kzbin.info/www/bejne/gIebe3p_bpWfl8U

[@reimondranu7898]

Had a similar issue with my d40 going into limp mode after being idle for a while. Changed the turbo valve solenoid and issue remained with the actuator still having play. Read online that the SCV was related to this specific issue. So i bought the part yesterday and stumbled onto this video at night. Decided to reset the ecu like how you did before changing the scv. To my suprise i had power after being idle for a while. I'll still check the scv to make sure there's no erosion, if there is I'll just replace it. Thank you for making this video. Years later and its still assisting your viewers.

[@PrimalNomad]

That's the biggest Win! I'm so glaf that this is helping still & hopefully keeps these engines alive. Appreciate your comment 🙏

[@DC-ku8vw]

Thank you for this video, I just used it to replace my SCV this morning and my D40 is running like a dream.

[@PrimalNomad]

That's the best news!! No problem at all :)

[@jericodivina3810]

Thank you very much bro. I’d been having the problem 5 days ago after scv was replaced but then this reset step made it fine. God bless.

[@PrimalNomad]

You are so welcome! I'm really glad that this has helped resolve it finally. Thank you and you also.

[@conmanumber1]

Hi from Oamaru Sth island New Zealand Question. Any other possible causes to this misery? A horrid white Hazy comes out of my 2012 Nissan Navara D40 St-X Diesel Spanish built then engine has rough lumpy idle then cuts out after 2 minutes or accelerated. E.g.r valve and cooler is fine. I possibly have coolant leak but there's no water in my sump oil or oil in radiator coolant. I'm not sure if e.g r valve failure can lead to same symptoms or ths. Do you think s.c.v would cause any issues to symptoms?. Cheers Carl

[@PrimalNomad]

Hi Carl! Sorry for the late reply, KZbin hid this from me for some reason 🤔. I'd suggest that the limp mode might also be related to the MaF sensor or BCV but potentially an injector issue also. Have you tried doing an ECU reset & fuel pump reset to see if you get any improvement, even temporarily? If not maybe I can arrange a chat with you to further diagnose. Liam

[@oratileknowledge4409]

Hello sir, we did the whole process of resetting the pump and ecu but the still the car doesn't start,I don't know what's causing it not to start,maybe you could enlighten with other causes that causing the car not to start 🙏

[@tekarniebessell3335]

Do I have to bleed the diesel injectors when I replace scv? I've heard of diesels reving up and not shutting off So that's my only issue. Do I have to unplug something and bleed injectors once I've replaced scv. And do i need to reset fuelpump, and ecu. I have a tune so will that effect it.

[@PrimalNomad]

No you shouldn't have to at all :) - Just the fuel pump reset so it learns the new valves tolerances. Thanks for watching

[@PrimalNomad]

This one's a bit more specific to navara owners but it's also an essential part of maintaining a vehicle for use on longer journeys for camping trips. Thanks for watching!

[@KamarolChemi]

Do we need a laptop/program to reset back

[@PrimalNomad]

@@KamarolChemi not for this, just the fuel pump reset with the pedal and key as in the description. Hope it works 👍

[@anthonypurll1779]

Hi. Where did you get the Denso scv from?

[@allenhenshall537]

@@anthonypurll1779 I've got to get scv for my 2000 nissan hoping it will fix it probably a new pair of injectors wouldn't go astray either

[@cordellej]

thats awesome bro i recently changed my scv and the upper chain tensioner as that was bad . the timing is spot on. i used a diagnosis tool reset the scv and now the vehicle is not starting at all ( advice came from a haynes manual) im gonna try your method tomorrow to see what that does mines a R51 pathfinder by the way 2006

[@J.J.BAILEY]

Would be good to hear how you get on as I’m contemplating doing the same on my 07 pathfinder as I’ve been quoted over 400 from a garage to do the work.

[@PrimalNomad]

I hope you both managed to get it all sorted in the end? Did the fuel pump reset help?

[@PrimalNomad]

Hey! Sorry for the late reply, how did it go?

[@halim5008]

Hey mate...i have replaced new scv about a month...but never do a reset step ...can i follow all the reset step from your discription?even though i have replaced for a long time

[@PrimalNomad]

Hey dude! Absolutely :) it will definitely help it

[@ramongalvezhumeres6957]

Dear Primal Nomad Thanks for your time and effort to publish you video. I replaced the SCV on my Nissan Navara LE 2012 4x4 & Manual Transmission, given the fact that I was experiencing the same symptoms you described i.e. once starting the engine first time in the morning the motor started fine BUT it stopped once the RPMs. decreased below the 1000 RPM. Same problem for a while but after the motor is at operational temp no more issues though sometimes - on a very random way - it will stop while waiting for the green light at the semaphore. Unfortunately the problem is still there after the replacement. Please note that after following precisely your RESET procedure I couldn't have the CHECK ENGINE LIGHT BLINKING...it has been lit all the time. Then I start the motor and unfortunately still have exactly the same aforementioned symptoms. Please advice. THANKS !

[@CrazoidMetal]

Hi Ramon, I read your comment here and felt I wanted to ask you if you’ve diagnosed/fixed your issue. I have an ‘07 D40 Nav Spanish, with the same problem you describe. I’ve replaced the SCV/cleaned MAF and replaced fuel filter. Car still stalling when cold. I fear it’s a timing chain issue. Any new info on your car? Cheers.

[@PrimalNomad]

I'm so sorry Ramon for a late reply, I never saw this comment until Christopher replied to it! In regards to both of your issues, I'd be very interested to see how your EGR's are, it may be blocked and causing the issue. This can then cause the MAF and BCV to work improperly causing an airflow issue and therefore a similar symptom to your diagnosis. Have you got an EGR plate installed also?

[@CrazoidMetal]

Hi mate, thanks for replying.. I’ll continue the thread for now haha.. EGR is not something I’m far I liar with, however on my car I’m quite sure the issue is worn timing chain/sprockets.. after disconnecting the cam angle sensor the car started and idled normally.. suggesting the sensor picks up the issue with the chain and cuts the motor out.. it is more of an electronic ‘cutout’ rather than a stall issue. I’ve since taken steps to buy a double row/duplex chain upgrade kit. Very expensive, but gotta do it.

[@Rpgpumpkin]

Very very helpful thank you so much!!👍

[@PrimalNomad]

You're more than welcome! Glad that it helped! 🙏🔥

[@HuntingandfishinginCyprus]

The diagnosis show error to the relief valve...do you know what fuel pressure relief valve is??? I don't have any ideas...is suction valve the same ??? Sumptoms are the similar...when i put pressure to throttle, the machine is getting almost everytime to limp mode

[@PrimalNomad]

Yes this sounds like the scv! Limp Mode on full throttle.

[@HuntingandfishinginCyprus]

@@PrimalNomad is the relief valve the same???

[@PrimalNomad]

@@HuntingandfishinginCyprus sorry , no the relief valve is located on the end of the fuel rail toward the rear of the engine. It could be a cause of the Limp Mode too as your code suggests. Quite an easy change if you get the banjo clip undone :)

[@HuntingandfishinginCyprus]

@@PrimalNomad thanks very much for the kind suggestions...take care...

[@michaelnewton2300]

Hey mate my car is doing tbe same thing i tried the reset but it did not work its a 2008 rx d40

[@CodyChapo868]

Thanks bro you save me some money. You definitely helped me 🙏🙏🙏🙏

[@PrimalNomad]

I am so glad! You're more than welcome 😊

[@jamiluddinahmed3230]

Brother , my navara automatic ,thai, 2010 edition ,having the problem of not getting power after 2500 rpm and gives a shake when i turn off the engine ,can SCV be the reason? CUZ I changwd the pruge control, turbi control solenoid last week still same

[@atsupatsu2633]

Hello, your problem seems exactly like the mine one. I have used my Navara automatic since 2006 like that, avoiding any acceleration more than 3000 rpm. Btw, I visited 5 different Nissan dealers during the warranty period, nobody was able to solve the problem. Suction control valve had been changed also.

[@sssperera]

Try this which I do for my navara d40 for fuel problems. Buy a liqui moly diesel purge remove the fuel line into the pump & return line from the fuel filter. Take a glass jar and fill liqui moly and put both removed fuel lines into the jar. Start the cab & continue it with different rpm levels. It will cleanup everything in rail and pump. Problem will resolve.

[@muzzaball]

Thanks for all the effort you went to, showing us the pointless dropped bolt - maybe you could have used the camera to actually show us a closeup of the SCV before, during and after installation?

[@PrimalNomad]

No problem! Handy to know where these little bolt traps are hey 😉 Thankfully it's not that hard to find the scv, it looks like the one I'm holding on the thumbnail & exactly where the camera shows it it :) Thanks for watching 🙏

[@HuntingandfishinginCyprus]

thanks for the video...i believe i must change it too... when i overtaking or accelerate fast is accidentally getting to safe mode and the car stopped moving... I'm pushing the gas pedal but doesn't response..it hardly reach 3000rpm...is that what happend to you too???

[@PrimalNomad]

Sounds exactly like mine! Definitely worth changing the scv 👍

[@pipww]

Your video was awesome, well done,Hope you find a more Nissan Navara fix it tricks. I advice to clear the MAF sensor with MAF cleaners.

[@PrimalNomad]

Thank you! I'll definitely be uploading more navara stuff very soon :)

[@aston_rug1949]

Hi mate .. I have my nissan pathfinder, when climbing hill go slow and i have clean the throttle, still the same

[@PrimalNomad]

Could be worthwhile cleaning your MAF sensor, EGR or BCV, they could all be culprits. But likely to be an airflow issue, maybe vac lines would be worth following to the air box and check for any leaks or splits

[@martinbillingsley2591]

Thanks for your video it's the best one on here. I'm going to have a go at my navara Thanks Martin

[@PrimalNomad]

Thanks Martin, Glad you've found it helpful. I'm in the process of releasing more videos on my Navara build, hopefully you'll find some of those helpful to!

[@surendrajattan9659]

I have changed scv on my yd25 then it gets worse idle high and still less power with computer lights on

[@surendrajattan9659]

Please advise thank you

[@maryellabrown5350]

I changed my SCV on my fuel pump and did the routine to sync everything but engine lights never flash what does this mean

[@PrimalNomad]

Potentially that the pedal 'dance' didn't work correctly. Have you tried doing the reset again? If not it's usually fine as the scv will learn over time

[@mrbee6339]

Hi do you have to pump the acceleration pedal to reset or can you just drive as normal after letting the 4x4 warm up first?

[@PrimalNomad]

Hey! Only to reset the fuelpump you should pump the pedal. Do it after changing the scv for sure! If not normal starting procedure :)

[@mrbee6339]

@@PrimalNomad okay cheers also I have a hissing noise on acceleration been told its a boost leak although doesn't seem to lose power.. could that be right?

[@PrimalNomad]

@@mrbee6339 definitely worth chekcing out the vac lines and the turbo actuator! The lines go from the bcv to the various parts I have another video on that too. The lines can split and cause a boost leak although I'd think you'd feel the lack of power at points on boost.

[@selmakimora]

My nissan pathfinder 2005 dci automatic only driving in 3rd gear. Speed reduces and Il have to switch off and start again. Also struggling to Pull or drive when switching on

[@PrimalNomad]

Have you checked egr & also mass air flow (MAF) sensor?

[@Jay-Aesum]

What if i replace the suction control valve then starting it and driving away ? what would happen ?

[@PrimalNomad]

Nothing, it will just run on the old setting adjusted to your old valve. You can do the ecu reset now if you want and it will learn the new valve

[@mrleighcbowman]

That was very good video I'm going to do it myself with a cap on now so I'm just like you 🤣🤣 my nissan comes up with error when I switch the ignition on nobody can tell me why ??? Can anyone tell me about it 😢😢😢

[@PrimalNomad]

Haha thanks! I'm glad you found it helpful :) I'm not too sure, what error are you getting?

[@andyvandewal4924]

my Navara automatic transmission starts fine and drives ok, but a couple of times limp mode yesterday. today starts fine but when taking off still is has no power until I have some speed. no fault codes in ecu. could it be the SCV? thank you very much!!

[@PrimalNomad]

Hey Andy! That definitely sounds like a dodgy SCV, it's also worth checking over your vacuum hoses from the Boost solenoid (on the side of the air box on my manual d40) and the MAF sensor on the airbox also, mine was limping from the moment I turned the ignition once and it was the MAF sensor plug wasn't clipped in fully. Limp Mode is a very common symptom for the SCV though and it's a part worth changing every 5 years or so in my opinion.

[@andyvandewal4924]

@@PrimalNomad thank you very much for responding! Ive already checked the hoses and maf sensor. Ordered an SCV and I hope it’s ok when installed. I’ll keep you updated!

[@PrimalNomad]

@@andyvandewal4924 no problem at all! Definitely do :) good luck!

[@josephnganga804]

My np300 d22 yd25 engine will get a little bit stuck on rev 900-1100 and rev slow and after that it will do perfectly... When driving when going over a bump and the rev goes below 1 especially on gear 2&3 it will rattle also when when loaded on a small hill it will rev down and will turn off forcing me to use 4wheel drive high what could be the cause and how can I resolve it? Thank

[@PrimalNomad]

It could potentially be a faulty SCV if it's in Limp Mode, mine used to do a smiliar thing after booting it a bit, if not maybe a boost control solenoid or transfer case switch if its forcing 4wd high? I'm not too familiar with the np300 albeit!

[@boukabboutabdenour5742]

Thank you for this video

[@PrimalNomad]

You're more than welcome :)

[@mrmrosli33]

Hi mate... When trottle my d40 will goes to limp mode and rpm will never be exceeding 3000 rpm on the sixth gear/top speed. The code says ..Turbo Booster Circuit. Do you have any ideas that caused this. Appreciate your idea mate.

[@PrimalNomad]

Limp Mode suggests SCV is bad, but also it could be the boost control solenoid if it's no boosting properly? I'll have a look at that circuit, hit me up on instagram @primal_nomad to chat if needed!

[@rutas4x411]

Good morning friend, I have a nissan navara diesel engine yd25tdi year 2010. Could you help me locate the PCV, SCV, EGR and IAC valve. the engine you fix is similar and nothing the same. Please help.

[@PrimalNomad]

Scv valve is as shown on the video, the Egr is located at the front of the engine by the timing chain cover. Maybe you have a later model? You can Instagram me photos of you like and I'll try help in anyway possible.

[@lewiskent6207]

Hi my d40 takes several attempts to start after stalling, could this solve my problem! Many thanks

[@PrimalNomad]

Hi Lewis! Sorry to hear you're having issues. I'd definitely recommend changing this valve if there's an issue with fueling (sounds like it) it could be that it's in a perpetual Limp and therefore can't start!

[@lewiskent6207]

@@PrimalNomad Thankyou for your reply I will give it a try!

[@PrimalNomad]

@@lewiskent6207 hope it works! 🙏

[@sendymcsend7907]

Hey mate, what was causing the limp mode for you? Mine happens when i put the car in cruise control at highway speeds. Driving around town under hard acceleration it doesnt happen.. It only seems to happen on cruise control under gentle acceleration. Thanks for the video, great tutorial.

[@PrimalNomad]

Thanks! Mine was caused by hard acceleration also, every time I went a bit harder it would Limp straight away. Sounds like the scv to me!

[@ANKOLJiMTV]

hey boss just wonderinh what code did you get?P2478 im getting this code all the time with my d40 2011 thai

[@PrimalNomad]

I can't remember the code exactly but it wasn't p2478, that's showing Exhaust Gas Temperature Sensor or possibly injectors. I'd start with testing the EGT sensor and work on from there. Keep me posted.

[@ElvisSaavedra-y8r]

I did not Understand how you stepped the acelerator in order not to scan the system

[@PrimalNomad]

Sorry for the late reply, To carry out the reset, follow these simple steps: Turn ingnition on so all dash lights come on. Wait 3 seconds PUMP accelerator pedal 5 times within 5 seconds.... Take foot off the accelerator after last pump and wait 7 seconds... After 7 seconds press and hold down accelerator pedal for 10 seconds... Atfer 10 seconds the Engine Managment Light will start to flash, at this point remove foot from accelerator. the Nav is now in diag mode, so let the EML flash for a bit. the press and hold the acclerator pedel down for more than 10 seconds..this will then reset ECU and fuel pump etc......and put them into learning mode.

[@ElvisSaavedra-y8r]

@@PrimalNomad Thank for you support

[@seankirby2580]

Thank you. Very helpful.

[@PrimalNomad]

Most welcome! I'm glad

[@vememakangunde4734]

Please help! I have a Nissan NP300 fitted with the YD25 turbo diesel intercooled engine. now mostly in the morning when I go to work it will have no power, even if I press the gas pedal to the floor, it does nor accelerate, when I stop and turn off the car the start again it goes back to normal and accelerates fine, it may repeat the same problem when I go for lunch , so I dont know how the car is going to behave at any time, what could be the cause?

[@PrimalNomad]

I'd say the scv would be a good option to look at replacing, this sounds like mine. Maybe try the fuel pump reset first to see if that helps?

[@jcprosc]

Hi I have the same issue with my diesel 2007 pathfinder, no power when cold after 5 min warm up seems fine, did you get it sorted out?

[@francismuchemwanakasale4216]

Hey mine the accelerator cable is slow at responding, what could be the problem?

[@PrimalNomad]

@@francismuchemwanakasale4216 is it in limp mode or just slow? Possibly could be a blocked egr if its slow acceleration, are the fuel & air filters clean?

[@indizeindiseno9225]

thanks!! I owe you a beer!!!!

[@PrimalNomad]

Haha! Thanks! Anytime 😉

[@agigere6065]

Hi! Is there a book with these manual codes for navara d40 ? Not only for this scv calibration, but for other facts too. Can you help me in this? Thanks:ági

[@PrimalNomad]

Hey thanks for watching! There is alot of information available on navlife.com.au/d40-series-service-manuals/ this is the gold mine for information on these trucks :)

[@mecanicadsm]

Show aprendo muito com seus videos.

[@PrimalNomad]

¡Muchas gracias! estoy feliz de escuchar

[@irmmacarvalli5946]

It worked 100% thanks

[@PrimalNomad]

Im glad! Thanks for watching

[@RobertTumun-di3ub]

Very helpful

[@PrimalNomad]

I'm glad! Thanks for watching 🙏

[@PrimalNomad]

I'm glad! Thanks for watching 🙏

[@BentonJurkovich-u1g]

Stark Track

[@apriyo2278]

What a same Scv navara D40 and D23 ?

[@PrimalNomad]

Hi, I believe they are similar but a different size body, maybe longer.

[@robertlord1252]

I drive a 2014 np300, d22 shape. I changed the SCV and it's the same problem, any suggestions?

[@PrimalNomad]

I've heard of issues with the turbo boost pressure control, it also could be the Egr. Maybe worth checking the Vacum lines from the turbo too. I'll have a think of any other options to check!

[@robertlord1252]

@@PrimalNomad thanks much I really appreciate it

[@evenstrand6173]

Thank's alot, this helped

[@PrimalNomad]

No problem! I'm glad it helped 🙏

[@mpapadimonyela7508]

Thank you. I was ready to throw away my car

[@PrimalNomad]

Ah I'm glad you didn't & this helped. 🙏🔥

[@rubina1972]

Can u give Step to reset the ecu...

[@PrimalNomad]

To carry out the fuel pump reset carry out the following - Turn ignition on so all dash lights come on. Wait 3 seconds PUMP accelerator pedal 5 times within 5 seconds.... with foot now OFF accelerator wait 7 seconds... After 7 seconds press and hold down accelerator pedal for 10 seconds... After 10 seconds the Engine Management Light will start to flash, at this point remove foot from accelerator.

[@cave_earthworks]

Trying to find the part number here in Australia I have a 2007 d40 2.5L turbo diesel and it’s going into limp mode even in idle sometimes

[@PrimalNomad]

I'll have a research, the navlife group on Facebook may be able to assist you also!

[@yannis1234]

Hi Greg, were you able to find the Aussie part number?

[@samyj9900]

Call Nissan parts give them the vin and the engine number. They helped me with part numbers previously on my Navara

[@mackanboi]

It worked!

[@PrimalNomad]

Amazing! I'm glad! 👌👍

[@saffaasaad3563]

Hi do you now this code P1275 nissan navara d40

[@PrimalNomad]

Likely to be the fuel pump, the code reads that there is an error with the air fuel ratio sensor 1 response time. Try doing the fuel pump reset that's in the video & description and this should help.

[@nathanreid2974]

is this common rail

[@PrimalNomad]

Yes, it's a yd25 diesel common rail engine.

[@nathanreid2974]

@@PrimalNomad i think they did the common rail denso pump, and a common rail bosh pump as well, with the bosh one given the DCI tag, i believe

[@PrimalNomad]

@@nathanreid2974 I've seen both too, mine in particular was a denso valve and I replaced with a like for like :)

[@philippschumann6047]

thanks you for the video! can you say me the part or order number for the scv?

[@PrimalNomad]

You're welcome! This will vary depending on the year of your navara, although most places online will let you check with your registration number :)

[@yakubuibrahim247]

Thanks

[@PrimalNomad]

No problem!!

[@hamzabennai7059]

Merci frere

[@PrimalNomad]

De rein!! Merci! 🔥🙌

[@diat1725]

The number of this SVC is P0360 Denso You can find it more cheaper in Peugot and Citroen Also the injectors and fuel pump probably the same

[@PrimalNomad]

Thats great advice, Thanks! I wonder about the injectors, I'd be interested in putting a new set in soon.

[@smpande]

Thanks bro!!!!

[@PrimalNomad]

No problem dude!

[@CraigieNicola-m6s]

Nya Island

[@luisvargas4890]

Desarmar y limpiar valbula presion bomva yllentora nissan navara 2012

[@PrimalNomad]

Creo que la válvula es la misma en el modelo 2012, ¡sí!

[@CliffordBrodzik-q7i]

Koss Court

[@Deperoner]

Seriously has to be the worst backing sounds/music ever

[@PrimalNomad]

Probably a bad choice in hindsight but unfortunately unchangeable now. Maybe I'll do a new video when it needs changing again. Thanks for watching & the feedback! Always appreciated

[@maryellabrown5350]

I changed the part put when doing the last bit my engine lights never flashed at all what does that mean

[@PrimalNomad]

Have you tried doing the reset again? Maybe the pedals weren't held down for the full seconds. I usually count a bit longer than my usual seconds haha

[@maryellabrown5350]

@@PrimalNomad I tried again but the engine light did not flash but it's running, I have to change the park nuteral switch once I do that then I'll see if it runs with out stalling

[@PaulBatty81]

@maryellabrown5350 the light will flash, just gotta time it correctly, may take a few goes