AFR's
#41
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That's normal for a car running test pipes. The ECU has to dump alot of extra fuel in the cylinder on cold starts due to bad atomization of fuel on a cold engine. I had the exact same spots behind my tailpipes in the garage, lol.
#43
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Seriously, it doesn't happen to everybody with FI and test pipes? Hmmm... I'll have a look. I haven't had a problem with hot or cold starts so I'm leary about taking away fuel for startup, but I guess it wouldn't hurt anything to try... It takes my widebands about 15 seconds to warm up and by that time, the AFR reads 14-15.
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