A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Is this normal?

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Old Dec 12, 2003 | 11:04 AM
  #1  
MikeReno13's Avatar
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Default Is this normal?

K04 went in on wednesday night with new ecu and cel popped up. car ran fine so i figured it was just a small issue, nor the cel is gone and i didnt do anything. do they normally disappear on their own? I was going to go down to autozone and see what code it was throwing, but now its gone, what gives?
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Old Dec 12, 2003 | 11:06 AM
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Default VAG it, better safe than sorry.

I know the PES kit turns on the CEL at first startup intentionally (for ECU recognition or some such nonsesne)
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Old Dec 12, 2003 | 11:13 AM
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Default Code is still there...

The CEL may go off on it's own, but the code is most likely still there. Get it scanned.
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Old Dec 12, 2003 | 11:20 AM
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Default iirc

the duty cycle failure has passed for the problematic component... therefore the CEL turns off.

Being nosey the way I am, I'd want to find out what it said, and if it's still going to be a potential problem. VAG-COM baby.
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Old Dec 12, 2003 | 11:49 AM
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Default

Mike, I live here in Reno, but my buddy with a 1.8T Jetta would probably know more...
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Old Dec 12, 2003 | 11:56 AM
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Default I had that happen (not after a KO4 mind you)

I VAGged it as soon as I could just to make sure.
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