Obd on a 93 bonnie sc
#11
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Awesome thanks! I found this forum for the cam sensor and how to check the interuptor https://www.gmforum.com/1987-1991-93...emself-190434/ is there any way to test the icm or the coil? Or do i just have to get a new one and hope thats it?
#12
Senior Member
True Car Nut
its not the coil if it wont start it will run on 4. the icm is a possibility some parts stores can test it. the other is crank sensor, it will run with the cam sensor bad or unplugged. its difficult to get to but the magnet on that can be an issue as well, i think you can test it with a meter at the icm plug though.
https://www.gmforum.com/trouble-shoo...m-test-299761/
https://www.gmforum.com/trouble-shoo...m-test-299761/
#17
Senior Member
True Car Nut
i think i read somewhere that the sensor has to be aligned. so there is that possibility or being bad new, or the wires to the icm like you said
#18
Senior Member
True Car Nut
I believe 92 is the last year that the alignment was variable. Beyond that the alignment was fixed.
Also, i believe many sensors and controls changed between 92-93 and 94-95, so that begs the question, what is this engine out of, and what was swapped over?
Also, i believe many sensors and controls changed between 92-93 and 94-95, so that begs the question, what is this engine out of, and what was swapped over?
#19
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This engine is out of a 92, the body is a 93. As far as far as i know, everything on the engine is from the 92 and the pcm is from the 93.
I checked the cables from the icm to the cps and all of them passed for continuity. Yes you do have to align it to 0.20 with a brass feeler gage to the outer ring with the 18 teeth.
I checked the cables from the icm to the cps and all of them passed for continuity. Yes you do have to align it to 0.20 with a brass feeler gage to the outer ring with the 18 teeth.