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Posted by Kaleb (Black '93 GXE 5spd) on July 16, 2002 at 18:36:41:
In Reply to: I've finished my Detonation Sensor Diagnostic Procedure. Nothing is wrong! --> posted by Aaron on July 16, 2002 at 18:33:49:
: Well, after driving the car for 2 days I finally got around to checking everything the FSM diagnostic procedure tells me to. : I first check to see if there are any codes in the ECU. It flashed 55... nothing is wrong. I went ahead and did the procedure. : I checked the input signal by checking continuity between the ECU and the detonation sensor sub harness connector.... checks out great. : I checked the detonation sensor itself by checking the continuity between the sub harness connector and ground.... checks out great. : Well, what the crap is wrong with my car? Everything checks out... but 2 days ago the ECU gave me the detonation sensor malfunction error. What happened? : Also, I talked to the dealership technician and he said that very rarely does he see that motor come in for a detonation sensor replacement. He said, "It's usually something else causing that code to flash. I've seen the o2 sensor cause the detonation sensor code to flash." I said, "hmm... ok thanks". : Any input is greatly appreciated. It will help me determine what the crap is going on. Thanks in advance.
: Remember I told you guys that I ran a self diagnostic procedure by turning that ECU screw and looking at the red flashes. Well, I got the code 34 = detonation sensor. After reading the FSM a little more, I found out that if you turn off the ignition switch while the diagnotic mode is activated... it will erase any codes from memory. Now, I got the 55 code.. meaning nothing is wrong.