The ECU in a MY 1999 Subaru Forester is located at the upper left site of the engine under the air intake.
To reset the ECM remove the battery cable (s) for a few minutes. Replace cable. ECM has been reset.
remove the negative battery cable for a minute or two
Unplug battery for 30 minutes then plug back on that will reset the ecm
Could be a bad knock sensor. The ECM may be retarding the timing based on bad input from a faulty knock sensor.
To reset the engine control module (ECM) on a 1999 Volkswagen Beetle, you can disconnect the negative battery terminal and leave it disconnected for about 15 minutes. This will allow the ECM to clear its memory and reset. After reconnecting the battery, you may need to drive the vehicle for a short distance to allow the ECM to recalibrate and relearn driving conditions. Always ensure that you have any necessary radio or security codes before disconnecting the battery.
You can reset the ecm with a scan tool or by unhooking the battery.
Where is the knock sensor located on a 1999 Subaru Forester?
There is no reset button. The computer is reset by repairing whatever tripped the CE light, and then using a scan tool to reset the light. Reset the light without repairing the problem and the light will just come back on.
Just unhook the battery cables for 5 mins, That will reset the ECM
ECM reset for 2002 merc couger
Disconnect the battery for five to 20 minutes. This will reset the ECM.