so i replaced the MAF with an oem..the sob wouldnt idle at first i had to rev the **** out of it to get it idle..its drive able but its stubling and when flooring it has no power it will stick to 4k rpm takes for ever to get up to speed and its now showing a P0171 engine lean bank 1 code....like wt is going on with my car this **** makes no sense to me


Ive checked all hoses for a leak the only thing that kinda got me sitting weitd was the little oil regulator thing in the valve cover was hissing for no reason so i tightened it down and it stoped but still has the issue with stumbling.. i even replaced the rubber coupling for the intake and new clamps all hoses are connected to the intake and sprayed them with water to see if i could see anything. running 93 octane.. never used anything lower..

can anyone shed some light on this issue.. im not starting to lean toward the issue being the fuel pump maybe... ive had the car 9 months now and since the Douche that owned the car before me bought it new never did any of the services required and i dont think he ever changed the oil before i took it off his hands..cause i took it to a shop to drain the diffrential. oil and transmission...the look on the techs face was horrifying.. they found a F***ing Mr good bar wrapper in the airfilter and my oil was chunky and transmission glooped out and was a metalic black...

so im begining to think it may be the fuel pump and filter..cause it started to do this weird thing for a while before this like 5months ago.. in 1st gear slowly taking off it would shutter and like surge in the motor i figured it was because i just wasnt giving it enough throttle but my buddies z didnt do it...

shitballs!

 

Did you disconnect the battery when you replaced the MAF? If not, the ECU may be running according to the readings from the bad unit. By disconnecting the battery, the ECU goes back to its factory program and has a chance to re-learn with the fresh part.

 

.........

 

^Is that a yes, or a no?

 

yeap sure did..that like asking did i wipe my *** after taking ****..

but the MAF wasnt the issue so doesnt matter anyway

 

...and why is that? He only asks because we have had many members who skipped this in the past.

What was the issue, for future reference?

 

idk why anyone would skip that step.. but the issue was the pcv valve some how it was pulling air i didn't noticed till i capped off the intake vac hose and heard it whistling on the other side of the engine.. i replaced the line and extra tight clamping the hesitation went away.. but its also a sign of coils getting worn out mine litterally just crapped out the other day which would make sense from my point of view on the odd idle and no explanation for it

 

Neither do we, but it has happened

Glad you got it cleared up.