p0171 and p0174 after supercharger????

[BAD BIRD]

two weeks after the supercharger install. SES light
need help with this codes p0171 and p0174
i dont know what to do ????

any ideas??

[97rs4life]

Re: p0171 and p0174 after supercharger????

bank 1 and 2 lean conditions I believe are those codes if I remember correctly. Did you do any fuel upgrades to compensate for the SC?

[BAD BIRD]

Re: p0171 and p0174 after supercharger????

nope Just the hp tuning
any other upgrades I should have done???

[97rs4life]

Re: p0171 and p0174 after supercharger????

what is your injector duty cycle at when driving?

Stock injectors and fuel pump?

If no fuel upgrades you will have issues with lean. You need fuel upgrades when doing FI, whether it be FMU or injectors

[BAD BIRD]

Re: p0171 and p0174 after supercharger????

i think 80%
I'm waiting on some 36lb GTP injectors that will go in as soon as i get my cam
that should take care of the problem, don't you think???

[bigbrian442]

Re: p0171 and p0174 after supercharger????

If the injectors are not maxed out then tune your MAF table. Those codes set when your fuel trims stay above +16.

[97rs4life]

Re: p0171 and p0174 after supercharger????

i think 80%
I'm waiting on some 36lb GTP injectors that will go in as soon as i get my cam
that should take care of the problem, don't you think???

you need to tune your fuel and get your a/f ratio lined up for having the extra air.

GTP injectors will be fine