warm-up AFR way too rich

Nistune topics related specifically to the 6303 cpu

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Mitchelw59
 

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warm-up AFR way too rich

Post by Mitchelw59 »

Is there any provision in the software currently to control AFR during warm-up and at what temp the warm-up cycle stops?

I see AFRs from 10.3-11.3 until the engine warms past 174F. This causes my plugs to be covered in a thick black coating of carbon as well as wasting fuel. Am I missing something? I had Specialty Z tune it but nothing improved in that area.
Matt
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Re: warm-up AFR way too rich

Post by Matt »

There are warmup enrich tables, but normally they don't need to be altered. See the Nistune mapping guide on our website for details on all the maps, including this
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