help with the engine

[neri33]

Hello everybody I hope you can help my with this problem on my Pathfinder 88

 

 

When it starts it works well but coming to 2800 rpm begins to rumbling and pulls back and forward,

 

 

 

Driving at low speeds without coming to this limit(2800 rmp) it works well

 

 

 

I already changed filters, check vacuum hoses, I check the pressure of gas when the problem begins but it looks normal, I try to pull any engine code but there was no any code, also changed the MAF sensor but the problem continues.

 

 

 

Any ideas or advise you can share

 

thanks

[88pathoffroad]

That's a wierd one...sounds like it's running in Safe Mode. Tried resetting the ECU by pulling the "ECCS" fuse for 30 seconds?

 

Have you taken anything apart to look at it and see if anything's visibly wrong?

[neri33]

That's a wierd one...sounds like it's running in Safe Mode. Tried resetting the ECU by pulling the "ECCS" fuse for 30 seconds?

 

Have you taken anything apart to look at it and see if anything's visibly wrong?

thanks 88pathoffroad

 

tomorrow I will go with the mechanic to make the diagnostic as you mentioned.

I forget to mention that the truck is standar