IHADAV8.com - Turbo Buick Tech, and Nonsense
General => IHADAV8 Playground => Topic started by: TurboCajun on September 26 2015, 05:12:32 PM
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Just got my friends GN on the road, things look good on the PL and scan master except for the O2s , it's showing run lean after warm up it cycles and goes to 000 and stays there until you move the throttle, I also notice when cruising , any change in throttle speeding up , it also hits the 000 , so I put in a new 02 sensor and it's still the same . It's like it's reading and shuts off
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try unplugging the orange wire and resetting the ecm...
then look for a big air leak...pcv valve, leak between maf and throttlebody, etc.
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Cajun...what's the BLM's?
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if I remember right they were at 128 on PL but I will check when I get home to verify.
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looking at the log the Bls are at 129 when the 02s are reading 000. I noticed that it only does it at idle and part throttle , and not at WOT.
The owner took the car home with him to have it cleaned up , so next time I have it here I will do some more checking,
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What chip is in that thing?
It sounds like it is staying in open loop (speed density) and not referencing the O2 (closed loop) until it gets upto a set load point. Which is backwards traditional methods.