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Guy's,
Question as above.

I want to reset my MY'99 ECU(with ECUTek-2)because I had an 'oildump',which polluted my MAF-sensor.My Engine stalled,so I'm allmost sure the ECU sensed a knock,and changed my ignition timing.

MAF is cleaned,and works fine,but I am not sure my ECU is still in his best 'performance-mood'

How long do I have to disconnect the battery to be absolutely sure,my ECU is properly resetted to it's original ECUTEk2-mapping?
(I do not have the DeltaDash software unluckely)

Thanx for all answers,or other suggestions.

Grtz.Arend Terpstra
Holland

If you want to be absolutely sure, don't mess about with the battery, use the read memory and test mode connectors under the steering column to do a hard reset on it.

Instructions here among other places.

i disconnect mine for about an hour

I heard today half an hour should do the trick indeed to set everything back to the initial(ECITek-)mapping.

Arend.