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Unusual idle occurance with new injectors

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Old 04-20-2008, 01:32 PM
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Default Unusual idle occurance with new injectors

Ok I just performed a dead cold start up with the scanner running. I'm going to attatch the log so everybody can take a look but after reviewing it here's what I see. As soon as the engine comes to life it momentarily idles at a normal AFR, at this point I was logging idle properties of approx. 75-78kpa, 25*C ECT and idle speed of approx. 600-620 rpm, than suddenly you see the AFR rocket up to 20+ with the kpa, ECT and rpm remaining basically unchanged.... baffling!! Something is causing the PCM to pull a tremendous amount of fuel for about 45-60 seconds before giving it right back and the car goes back to idling normal. If nothing esle I certainly hope I can pique some curiosity out there

BTW this is occuring after a swap from stock 2000 injectors to a set of Accel 42# units.
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4-20-08_cold_start_warmup.efi (178.9 KB, 27 views)




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