Quote:
Originally Posted by 13ZL1BLove
So it's like a tune but not ?
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No, there is a high and low fuel trim level in the computer but it gets stuck on the low levels when you get bad or improper octane fuel. Even if you get good or proper fuel and go 10K miles after that it will never go back to the high trim levels so the fuse pull would then be required to reset the ECM and thus allow you back into the high trim levels.