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View Full Version : Will piggy back help fix OBDII PO171 "system too lean"


lyndonvang
01-29-2007, 05:08 PM
Will a piggyback mangement help fix hesitation under acceleration. What type do you guys recommend? Willing to spend around $400.

msp35
01-29-2007, 05:10 PM
DSM's AFC, wait a week or so for a possible group buy *that's the rumor*

JDM Sam
01-29-2007, 06:31 PM
No, you need to fix that CEL before you start modding.

GreySpeed
01-29-2007, 06:57 PM
Yea, def. fix that CEL first. Are you experiencing heavy hesitation/fuel cut at all. Could be that the wastegate actuator is done cuz I pulled that code when mine broke.

Captain KRM P5
01-29-2007, 06:59 PM
DSM's AFC, wait a week or so for a possible group buy *that's the rumor*

as soon as they are in my hands *thats the truth* ;)

smo0f
01-29-2007, 07:02 PM
it could be that he's running 12 psi with no supporting mods, like he stated in his other thread. not sure why he needs a new thread for the same question. since he says he has no boost controller, your wastegate is most likely faulty and needs to be changed. that's all there is

jeffmsp
01-29-2007, 08:05 PM
there could be tons of reasons you are leaning out, clogged injectors, poor fuel, low fuel pressure etc. get the car fixed, find out what kind of boost you are running and get the afc and a wideband gauge once that is done to tune your car. There is a good chance you have damaged your motor.

Ive never even thrown that code even boosting 14psi so you really must be fucking shit up lol get it fixed before your start tuning with the afc.

crashkelly
02-15-2007, 03:41 PM
Will a piggyback mangement help fix hesitation under acceleration. What type do you guys recommend? Willing to spend around $400.

I have a thread in FS section for an MPI tuner...costs about $700 and I am selling for $525 including shipping...It was never installed and still in the original bags ModernPerformance sent them in (stored inside the house not in the garage).