YD25 engine Navara

exportnavara · Jul 3, 2009

Problem that no one can solve till now
Engine not revving more than 2000 rpm
And not going more than 60 km/h
Dealership changed turbocharger, injector pump but nothing changed
Anyone had the same problem
Any suggestions please

maddogrc · Jul 3, 2009

sounds like limp mode?

exportnavara · Jul 3, 2009

Thanks for the quick reply,
How to resolve it

maddogrc · Jul 4, 2009

try this:

1. Ignition "ON", count to 3.
2. Depress/Release pedal 5 times...hard and fast.
3. Count to 10 (not 7!) and fully depress pedal
4. Count to 12 (SES should be blinking), release pedal
5. Count to 10, depress pedal
6. Count to 10, release pedal.
7. Turn off ignition, then start engine. Done!

doubt it will work but its worth a shot by any means!

Matt76 · Jul 4, 2009

It does sound awfully like limp mode but surely the dealer would have picked that up before changing the turbo? Does it only rev to EXACTLY 2000rpm? Same every gear? Limp mode should dissappear when the ignition is turned off and back on, so maybe there is a fault in the elcetronics that is stopping it from returning to normal? or maybe there is a fault somewhere else that is keeping it in limp mode?

Sorry I have lots of maybe's but no solutions for you.

Dave · Jul 4, 2009

Id be more inclined to think its the boost pressure switch or the fuel pressure switch.

Its not coming out of limp mode, so there is a sensor that has failed.

When did it start doing it, what conditions did it start doing it.

Dave.

merchant · Jul 5, 2009

Definitely limp mode...I had the same result resultly because of that bloody no good fu*king diesel particle filter thingy.

It'll be a sensor.

4BYFOR · Jan 12, 2010

hey mate, I had mine in the workshop for about 2 weeks.. My boost solinoid went they changed it and now it works but it still goes into limp mode all i do is turn the key one click down to ACC then back on in drive without putting it in netural and i dont START it just put it back to IGN ON then its back to normal..

engblock · May 31, 2010

hi bro good day do you have data for nissan navarra YD25 OBD trouble code P1275 tks.

Dave · May 31, 2010

Ah who is that directed at ?

Dave.

Jason · May 31, 2010

engblock said:
hi bro good day do you have data for nissan navarra YD25 OBD trouble code P1275 tks.

P1275- accelerator pedal positon sensor circuit 1 fault

Old.Tony · May 31, 2010

P1275 is related to the fuel pump and may require further codes to discover the actual problem.

NOTE:
If DTC P1275 is displayed with DTC P0652 or P0653, first perform the trouble diagnosis for DTC P0652
or P0653. Refer to EC-1215, "DTC P0652, P0653 SENSOR POWER SUPPLY" .

It then goes on to say:

DTC No._______Trouble diagnosis name____DTC detecting condition_____________Possible cause

P1275________Fuel pump exchange_______Fuel pressure is too much higher______* Harness or connectors
1275_________________________________than the target value._________________(The fuel pump circuit is open or shorted.)
_____________________________________________________________________*Fuel pump
_____________________________________________________________________*Fuel rail pressure sensor

Sorry about the lines there, I can't make tables (or I'm too blind to see how).

Hope that helps.

tweak'e · May 31, 2010

engblock said:
hi bro good day do you have data for nissan navarra YD25 OBD trouble code P1275 tks.

the manual says fuel pump

Jason · May 31, 2010

I just googled it. Someone else had it and that was the answer for them.

Listen to the other two guys

Stunub · Jun 4, 2010

And the dealer could not work this out?

conadamos · Oct 7, 2011

I have an oil leak between the vac pump and housing and i need to remove the fuel pump to get the vac pump off does anyone have any advice for me

KraftyPg · Oct 8, 2011

I'd say download the service manual but someone recently suggested the service manual links on this site don't work. But if you want to sign up and donate to the UK site you can get a copy.....and welcome to the forums.

Dave · Oct 8, 2011

conadamos said:
I have an oil leak between the vac pump and housing and i need to remove the fuel pump to get the vac pump off does anyone have any advice for me

The vacuum pump should be bolted to the timing case.

The high pressure fuel pump will be driven off the timing chain hanging off the side of the motor.

If its like the non crd YD25 you should be able to remove the vacuum pump without removing the fuel pump.

Be careful though, that fuel pump has some serious pressure in those fuel lines.

YD25 engine Navara

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