Quote:
Originally Posted by steve99
On the stock tune IAM initial parameter is set to 0.7, so when you reset the ecu on a stock tune iam will go to 0.7 not 1. After the reset on a stock tune you would need to drive for a period with the ecu seeing little or no knock for the iam to move up to one, light throttle runs 2000-6000 will generally achive this quickly if no\minimal knock detected.
If you on crap fuel the iam may actually go down to 0.5 or less,especially driving in lower rpm range and applying quick throttle applications.
The difference between runs at iam 0.5- 0.7 to 1 could be arround 8hp
Most tuners will set iam initial to 1 in thier tunes so after a reset ecu runs full timing. ie reset the ecu on a tuned car and iam will start at 1 not 0.7 like stock tune
Its a trick\trap that can make tunes look better\worse than they are
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You missed the part in my post where I said reset brings the aim to .7 .
The fact that it made no diff in power means my aim before the reset was around .7