check engine light

ironcobra2002 · 11-04-2005, 02:28 AM

My 87 non turbo has had the check engine light on for about 2 years and i am really starting to get tired of the little yellow light that comes on EVERY DAY. i have got the code and it is number 53 which sayes that their is a short or open in the knock sensor circuit. i have replaced the sensor and that didn't do anything. just want to see if maybe someone had some ideas on how to make the light go away without removing the bulb.

thanks

mrnickleye · 11-04-2005, 02:31 AM

Search this forum (and/or SM) for the knock sensor wiring repair. It seems that the wiring is an issue with these cars.

nickvash0104 · 11-04-2005, 02:52 AM

From my experience with OBDII cars (I know that the 87 doesn't have OBDII, but read on) when the troublecode indicator reads 'circuit', you have to consider three things -

A) The sensor itself.

B) The circuit, running from the sensor to the computer that interprets the information.

C) The computer that reads the information.

Along these three points, there can be failure, and any of them will cause the light to go on.

mrnickleye · 11-04-2005, 06:32 AM

^ couldn't be said any better, or plainer.....

ironcobra2002 · 11-05-2005, 04:07 AM

Yeah hopefully its not the computer i'll look at the wire

thanks

11-04-2005, 02:28 AM	#1
ironcobra2002 Stock Join Date: Nov 2005 Location: WV Posts: 10	check engine light My 87 non turbo has had the check engine light on for about 2 years and i am really starting to get tired of the little yellow light that comes on EVERY DAY. i have got the code and it is number 53 which sayes that their is a short or open in the knock sensor circuit. i have replaced the sensor and that didn't do anything. just want to see if maybe someone had some ideas on how to make the light go away without removing the bulb. thanks

11-04-2005, 02:52 AM	#3
nickvash0104 3" Exhaust Join Date: Aug 2005 Location: Dallas, TX Posts: 78	From my experience with OBDII cars (I know that the 87 doesn't have OBDII, but read on) when the troublecode indicator reads 'circuit', you have to consider three things - A) The sensor itself. B) The circuit, running from the sensor to the computer that interprets the information. C) The computer that reads the information. Along these three points, there can be failure, and any of them will cause the light to go on. __________________ Black '87 N/A Auto

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11-04-2005, 02:31 AM	#2
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Search this forum (and/or SM) for the knock sensor wiring repair. It seems that the wiring is an issue with these cars.

11-04-2005, 06:32 AM	#4
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	^ couldn't be said any better, or plainer.....

11-05-2005, 04:07 AM	#5
ironcobra2002 Stock Join Date: Nov 2005 Location: WV Posts: 10	Yeah hopefully its not the computer i'll look at the wire thanks