Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

FAST Q? Lean spike on tip in?

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Old Jul 16, 2003 | 06:03 PM
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97TA-WS6-Con's Avatar
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FAST Q? Lean spike on tip in?

I have been making fairly good progress on my tuning lately but one challenge remains and that is the results of the AFR just as I tip-in on the gas.

As I depress the gas, it will become a little lean, and then goes a little fat and then settles in. The correction moves to about +10% before setteling back to zero. On a standard are we to expect this lean/rich spike?

Now I have played around with the "AE vs tps rate of change" and that seems to have helped a little but I'm not sure what the "AE versus MAP rate of change" does. Currently my chart looks very weird but I'm not sure what it is suppose to look like and what the implications are to changing it.

Thanks for the "tip".
Old Aug 14, 2003 | 12:03 AM
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ttt
Old Aug 14, 2003 | 07:34 AM
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Can you post some data show what this looks like?
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