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SlkMerc
02-28-2007, 09:07 AM
I have a question prior to installing my tune. I have had an intermittent misfire
that put the check engine light on. It is on now. Do i need to clear this 1st before installing the new tune?


Thanks!
MitchB
02-28-2007, 09:41 AM
Whether you disconnect the battery or not, using your XCAL2 to flash your ECM will erase the keep alive memory. This, in effect, will clear your stored code.

Mitch
Krytin
02-28-2007, 01:37 PM
You need to fix the misfire - the tune will not cure any existing malfunctions that are throwing a "check engine light"! If it's not firing on 8 now - it won't be after you install the tune either!
SlkMerc
02-28-2007, 02:05 PM
I am aware the tune wont fix the problem. It is firing on all 8. The code reads as misfire in the initial RPM during start up.
Dennis Reinhart
02-28-2007, 03:25 PM
I have a question prior to installing my tune. I have had an intermittent misfire
that put the check engine light on. It is on now. Do i need to clear this 1st before installing the new tune?


Thanks!


The Xcal 2 will clear as well as read this code, I would fix this issue before installing the tune