Question about 1997 Subaru Legacy
I have the check engine light on speradically. The car doesn't seem to drive much different when it is on, then when it turns off. Any idea what this could be?
Check the knock sensor.
The light comes on when you climb a hill, accelerate quickly or do anything that advances the timing a lot and the knock sensor doesn't hear the knocks (pinging). The engine timing is not retarded, so you get a misfire.
The computer turns off the CEL if it sees the car start and run with no misfire of this nature 4 times in a row.
Posted on Sep 02, 2008
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