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Re: Need Help!
The time needed with the battery disconnected for an ECU to "reset" is often hard to find out. Some cars may only be a hour or two, whereas some I've tinkered with had to be depowered for 24 hours to default them! I don't really know how long the EL ECU will take to "die".
If you can default it, the best way to get it operating correctly again is to take the car for a long drive and put it through the FULL operating range of engine operation. That is, things like cold and hot starts, full throttle accelartaion, idling, heavy accleration with low revs and so on. In that way the ECU will settle to best manage the engine to give good performance and idling etc..
ECU's actually contain "tables" of engine operation information which the ECU can look up and use to make the engine operate to specs. When an ECU first starts up, it will generally use the "top table" that is intended for a new engine. As the engine wears, its parameters change which the ECU can correct by using the other tables. Theoretically, this ensures that the vehicle remains ADR compliant over its life. I said theoretically! With a repowered ECU, it may actually take several days for it to do this process and settle to get the engine running right.
Oh yes - calagrate??? Do you mean "calibrate"?
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