Lean spikes going from closed loop to open

K-Series Programmable ECU installation questions / support issues
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Zoro2006
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Joined: Sun May 02, 2010 3:07 am

Lean spikes going from closed loop to open

Post by Zoro2006 »

Problem is that sometimes when car idles and I try quickly to accelerate car lean spike occurs. It happens when moving from traffic lights and etc. From logs I see that AFR goes from closed loop to open before lean spike occurs, lean protection enabled. So sometimes lean protection kicks in and I get power dips when starting to move. I know that lean protection can be switch off or just reconfigured with different values, but from where such AFR lean spikes ?
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Spunkster
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Re: Lean spikes going from closed loop to open

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