First Turbo'd CEL

[Sky2king8]

P0171- Running lean

I am picking up the MWR 525cc injectors...the question is should I pick up the 165lph pump or will I be fine with injectors?

Edit: I looked at MWR website, didn't see 525...I thought they made them?

And their fuel pump is 190...

Anyways, just looking for suggestions, at 6 psi now, eventually 10 psi would be my goal

[Franky_RedWine]

do you have wideband O2 and EGT sensor? if you get correct number from it,I think it's not a big problem,check on the stock O2 narrowband sensor or some leak from exhaust headers ;)
For 6-8psi the 380 or 440cc works fine,not needed big fuel pump for st1.

[Boosted2.0]

P0171- Running lean

I am picking up the MWR 525cc injectors...the question is should I pick up the 165lph pump or will I be fine with injectors?

Edit: I looked at MWR website, didn't see 525...I thought they made them?

And their fuel pump is 190...

Anyways, just looking for suggestions, at 6 psi now, eventually 10 psi would be my goal


Definitely go 500+ on the injectors, and the 165 lph pump is a good idea too.

FYI - the code probably has a lot more to do with your MAF or the E-manage tune then anything else.

[Sky2king8]

FYI - the code probably has a lot more to do with your MAF or the E-manage tune then anything else.


I'll check my MAF but the e-manage tune was fine for a long time...it would be weird to just start throwing this code a year later.

[SleeprGT]

maybe something caused your **** to go lean over the last year, like dirty injectors, or a dirty mafs, I ran 6.7 psi on GT-s injectors and mine never ran lean, i would definetly look into it. And i would not run over 9psi unless your car is not a daily driver, 10 is kinda pushing it on a gt. Some hold up fine others don't.