Bad O2 Sensor Signs...

K-Series Programmable ECU installation questions / support issues
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wdsonny
Posts: 21
Joined: Thu Oct 30, 2003 9:52 am
Location: Chula Vista, CA

Bad O2 Sensor Signs...

Post by wdsonny »

I have noticed lately that at idle my AF is up around 18's. I have the idle lamba set to 13 and it is still at the 18. My tables inside K-Manager on the lo cam are 10 to 40% lean. Using a new baseline calibration from the K-Manager and just setting for my values that I like. Once I go under boost everything evens out and reads normal. Just under part throttle. Wondering if my O2 sensor is going bad.
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Razathorn
Posts: 469
Joined: Tue Jun 14, 2005 12:17 am
Location: Lenexa, Kansas, USA

Re: Bad O2 Sensor Signs...

Post by Razathorn »

wdsonny wrote:I have noticed lately that at idle my AF is up around 18's. I have the idle lamba set to 13 and it is still at the 18. My tables inside K-Manager on the lo cam are 10 to 40% lean. Using a new baseline calibration from the K-Manager and just setting for my values that I like. Once I go under boost everything evens out and reads normal. Just under part throttle. Wondering if my O2 sensor is going bad.
Datalog?

Have you ensured that you are not driving around still in open loop?
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