codes say its running lean- what to do ?
Thread Starter
Drifting
Joined: Feb 2000
Posts: 1,513
Likes: 0
From: Lake Travis TX
codes say its running lean- what to do ?
i clear the codes and it still comes back :
P0171 H
P0174 H
its a history code, but it has given me the "C" current code one time before.
wth? ?
how can I stop the car from running lean ?
does it need to be taken back to MTI for LS1 edit fix ?
what would cause the car to run lean ?
P0171 H
P0174 H
its a history code, but it has given me the "C" current code one time before.
wth? ?
how can I stop the car from running lean ?
does it need to be taken back to MTI for LS1 edit fix ?
what would cause the car to run lean ?
Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: codes say its running lean- what to do ? (KDubb)
Id run an obd-ii diag like autotap, and see whats really going on. Did it just start happening out of the blue?
Drifting
Joined: Feb 2000
Posts: 1,922
Likes: 0
From: Boulder, Colorado
Re: codes say its running lean- what to do ? (KDubb)
does it need to be taken back to MTI for LS1 edit fix ?
Good luck.
Thread Starter
Drifting
Joined: Feb 2000
Posts: 1,513
Likes: 0
From: Lake Travis TX
Re: codes say its running lean- what to do ? (kewlbrz)
Id run an obd-ii diag like autotap, and see whats really going on. Did it just start happening out of the blue?
since i got the car back from them it has been throwing those 2 codes. They did have to remove the headers to gain access to the clutch, could that have anything to do with these codes ?
Le Mans Master
Joined: Jul 2000
Posts: 7,758
Likes: 0
From: Fort Worth Texas
Cruise-In II Veteran
Cruise-In III Veteran
Re: codes say its running lean- what to do ? (KDubb)
Id run an obd-ii diag like autotap, and see whats really going on. Did it just start happening out of the blue?i never had an issue with the car after the cam install till i took it to the local dealer here to replace the clutch.
since i got the car back from them it has been throwing those 2 codes. They did have to remove the headers to gain access to the clutch, could that have anything to do with these codes ?
since i got the car back from them it has been throwing those 2 codes. They did have to remove the headers to gain access to the clutch, could that have anything to do with these codes ?
Thread Starter
Drifting
Joined: Feb 2000
Posts: 1,513
Likes: 0
From: Lake Travis TX
Re: codes say its running lean- what to do ? (kewlbrz)
Could defintaly be a leak in the system. The headers could be pulling in fresh air, and falsing a lean condition to the O2's.
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Le Mans Master
Joined: Aug 2001
Posts: 8,145
Likes: 1
From: Bradenton FLORIDA
Re: codes say its running lean- what to do ? (KDubb)
Leak would probably be around the header flanges...listen for a " snapping sound" almost like a lifter clack. Also, you don't think they did a courtesy re-flash update for you eraseing your custom tuning, do you? The MAFT is for tuning air/fuel if you don't take the step of LS1 or other custom tuning...it is imperfect at best, but can help. :cheers:
