Rich Idle on SC car
05-13-2003, 01:47 PM
#1
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Join Date: Dec 2001
Location: Albuquerque, New Mexico
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Rich Idle on SC car Not sure if I should post here or in 'Fueling'. I just tuned a C5 that we put an ATI supercharger on. Changed injectors to SVO 42# and adjusted flow rate OK but not offset. While monitoring with EASE and running on a dyno, all fueling looks great except at idle where it goes pig rich. Out of FTC 19 everything goes to normal. The MAF raw frequency is in 3400-3500 range, which is really high. Any ideas why this is happening, or a fix?
05-14-2003, 08:20 PM
#2
Re: Rich Idle on SC car Just tweak the MAF rate below 5000hz and tell the pcm you are flowing less air than it expects. You can smooth it a bit at the first few cells for a smooth transistion.
I think the issue is really the offset but I'm not comfortable in tweaking that (my ignorance of how how offset works
)
I think the issue is really the offset but I'm not comfortable in tweaking that (my ignorance of how how offset works
)