[Mattshed]

Hi guys I'm a fairly new member but I've been through this forum a million times got help with my truck! So thanks is I'm order already but I'm now getting frustrated with an issue I've got so here we go.

Truck drives fine occasionally but has recently started hitting limp mode more and more often sometimes with the eml light sometimes without the stored code is p0237 so I replaced the boost sensor hasn't fixed it. I have replaced all filters including the fuel filter prior to doing the sensor but it was still having the issue then. I have got a fuel pressure relief valve, a fuel suction control valve, a MAF sensor & a boost solenoid to stick on yet but if none of this cures it I'll be well & truly stuck. Any experience or advice would be greatly appreciated! .

Many Thanks

Matt

 

[Mattshed]

It's a 2010 D40 my bad for not including the details !

 

[landmannnn]

P0237 is the suction control valve (from memory!)

 

[Mattshed]

Thanks landman I'll get that changed tomorrow and see how she goes, drops all power and you get black smoke if you floor it when its limp if that helps

 

[Mattshed]

So a quick update I done the suction control valve with a genuine part straight from nissan and now I'm having the same fault all over again ! Same code po237 I'm getting rather fed up now on trying different things & wasting money worst part of it all is there isn't a Nissan specialist that I know of in my area which is NR28

 

[pistol6000]

well as you have replaced most mechanical parts, maybe have a closer inspection of the wiring/connections to the boost sensor?

you never know, could be as simple as this guys fix
https://www.nissan-navara.net/27-te...ara.net/27-technical-assistance-d40/72770-p0238-p0237-fault-codes-resolved.html

 

[diydave]

well as you have replaced most mechanical parts, maybe have a closer inspection of the wiring/connections to the boost sensor?

you never know, could be as simple as this guys fix
https://www.nissan-navara.net/27-te...ara.net/27-technical-assistance-d40/72770-p0238-p0237-fault-codes-resolved.html

Quick search comes up with:
P0237 NISSAN - Turbocharger Boost Sensor Circuit Low
Possible causes Faulty Turbocharger Boost Sensor, Turbocharger Boost Sensor harness is open circuit or shorted. If you own a multimeter, test for very low resistance or open circuit..
Turbocharger Boost Sensor circuit poor electrical connection. Pistol's suggestion.

Read more: https://www.autocodes.com/p0237_nissan.html
Give Dave a ring at Billcar, I'm sure he'll point you in the right direction.

 

[Mattshed]

Could it possibly be anything to do with a faulty EGR valve ? Had a word with my mechanic today and he's suggested giving it a clean up as it's intermittent. Surely if a wire was gone or low resistance the fault would always be there rather than every so often ?