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Join Date: Jan 2002
Location: Virginia
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Re: CJ7 emmisions help
You're right, EGR has a significant effect on engine performance. As for electronic spark advance/retard - it probably makes sense to do a nutter bypass to take the computer completely out of the loop, especially if you're doing away with all the emmissions stuff and Carter BBD. If you remove all the sensors/emmissions equipment, the computer might try to play tricks with the timimg.