car wont run in closed loop??
Thread Starter
Joined: Jun 2006
Posts: 1,460
Likes: 7
From: Orange County, CA
car wont run in closed loop?? So im having this really weird problem, when the car is cold, it runs great, but when it get to operating temperature (im guessing when it goes into closed loop) it doesnt want to run right, and it goes super lean. However, if i immediately go WOT (computer comes out of closed loop for WOT iirc), it still runs great. I have changed the plugs, wires, and coils, and it is still doing this. Im only running two 02 sensors, one for each bank before the turbo.
i have the ebay turbo kit if that helps..
and all my sensors are reading good on my scan tool
coolant avg 180*
intake air temp avg 70*
and it doesnt look like its pulling timing or anything like that....
anyone have any ideas???
i had this car dyno'd at a local shop and we cant seem to figure it out. he is using HP tuners on a 2bar SD tune.
i have the ebay turbo kit if that helps..
and all my sensors are reading good on my scan tool
coolant avg 180*
intake air temp avg 70*
and it doesnt look like its pulling timing or anything like that....
anyone have any ideas???
i had this car dyno'd at a local shop and we cant seem to figure it out. he is using HP tuners on a 2bar SD tune.
Thread Starter
Joined: Jun 2006
Posts: 1,460
Likes: 7
From: Orange County, CA
Thread Starter
Joined: Jun 2006
Posts: 1,460
Likes: 7
From: Orange County, CA
ok, so i unplugged the 02's and the problem is still there... i talked w/ my tuner and he said the car is tuned for open loop anyways. now i have no idea whats going on...
Thread Starter
Joined: Jun 2006
Posts: 1,460
Likes: 7
From: Orange County, CA
no codes..., i typed "turbo lean part throttle" on google and i guess a lot of import guys have this problem... is it possible that im getting too much boost at part throttle, that its making it lean out? they are calling it "part throttle over boost"
i have a 404ci with awesome CNC'd heads (West coast racing cylinder heads) all on a 76mm with an .81 a/r housing. i know its "small" but this is a street car, i want it to spool fast
i have a 404ci with awesome CNC'd heads (West coast racing cylinder heads) all on a 76mm with an .81 a/r housing. i know its "small" but this is a street car, i want it to spool fast
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On The Tree
Joined: Sep 2007
Posts: 198
Likes: 0
PLEASE get a wideband, and some way to scan this thing...
The only way you could know if it is or is not in open loop is via scanning... LS1M, areoforce, HPT, anything to scan. The wideband will help as well, as you could actually communicate problems clearly without people having to guess.
The only way you could know if it is or is not in open loop is via scanning... LS1M, areoforce, HPT, anything to scan. The wideband will help as well, as you could actually communicate problems clearly without people having to guess.
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