Cold start surging (data log included)

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mustang70

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I've been having a similar issue with mine. I can't look at the tune currently, but I did find raising the cold portion of the Initial Values table under idle helped a lot. You'll also need tweak the Warm Up Enrichment.
 

80sFox

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I've been having a similar issue with mine. I can't look at the tune currently, but I did find raising the cold portion of the Initial Values table under idle helped a lot. You'll also need tweak the Warm Up Enrichment.
Thanks. I was messing with the tune and I added more fuel to the WUE and it helped. I also upped my timing and leaned out my VE. My engine seems to like 18* of timing and 14.5-15.0 AFR. Previously I was at 14* and 13.5 AFR.
 
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a91what

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Dont forget that there is a warm up advance adder table as well. Some engines like more timing during warmup and some like reduced timing.
 
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