*To set the closed throttle referance position, place the transmission Neutral with all electrical loads OFF.Īfter all this has been done then proceed to go on and to do these steps which actually set the TPS values ĥ. NOTE- DO NOT TOUCH THE ACCELERATOR DURING ANY PERIOD OF THE 5 FOLLOWING ADAPTIVE PROCESSES.ġ. Then to verify the correct idlespeed of the engine the following 4 steps should be taken with the vehicle being idled while stationary for approx 1-2 minute in each of the following conditions. If the calibration is not performed following power source interruption, the transmission will shift hard and perform poorly from then on.įirst of all drive the car to normal engine temp and the thermostat has opened etc Thanks to GTBob and Itchione for their input with these instructions from the EF & EL Workshop Manual:Īny time the battery is disconnected, the transmission must re-learn the closed and wide-open throttle positions to enable the PCM to determine the proper gear to select for the appropriate throttle position. Nooo not at all! As their is a complete set of steps you have to do to after you have reconnected the battery which are as follows. Yes I found this thread the other day while doing a search as despite what people have said, that all you need to do to reset the ECU is just a matter of taking the Negative off the Battery for 2 hours or overnight then re-connecting it and then thrash your ride for the next 2 days.
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