CEL won't go off!! Foaming at the Mouth....

External Since: Sep 08, 2005 Posts: 1

1995 318i with the obd 1 dme. It has displayed a knock sensor code for
almost a year. I finally got around to fixing it,replaced both sensors
involving a lot of pain and sweat, only to have the code immediately
reappear after starting the car. I tried disconnecting the battery- no
good- the code comes back on the next time the car is started. I want
to hammer the instrument panel... and then on the way to work this
morning the rear view mirror fell off ...how about some thoughts on
that check engine light. Thanks.

External Since: Dec 13, 2004 Posts: 14

I would trace the knock sensor wires all the way back to the ECU. If
the wires are good and dont have too much resistance (ohms) then I
would say your ECU is toasted and needs butter.

BD