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Old 25-10-2012, 09:36 AM   #16
auIILTD
5.6L x 2 pilot
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Default Re: ECU Reset - Why and should I?

Quote:
Originally Posted by Lajon
i have a 99 fairlane.. i have changed the air filter to a pod, have had the transmission serviced with a shift kit installed, changed the fuel filter and changed my diff fluid which i'd say hadn't been changed in a looooong time.... is it worth resetting after all this work? i'm also putting on a set of 18 inch rims..should i wait till these are on?
Lajon, read my post above. Resetting the ECU simply erases long term Fuel trims. Your Pod filter, yes will have an impact, but as for the other stuff - no. Reset your KAMS (keep alive memory) based on change of engine breathing alone.

Gents, this thread should be called reset Long Term Fuel Trims, not reset ECU, as long term battery disconnection as far as I know only erases LTFTs (or KAM). I am happy to stand corrected by someone else more in the know.
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2002 AU II LTD

5.6L 342ci T3 Short, AFR165 heads, Comp XE270HR-12 Cam, Brembo 4/4s(355/330), T3 5 spokes, LC-1 wideband, Whiteline HD swaybars, TCE 3K Hi Stall, PWR Auto Trans Cooler, Koni shocks, King Low Springs, Hurricane headers, 100 cpsi cats, Twin 2.5" exhaust.

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