ignition problem - Team Camaro Tech
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post #1 of 6 (permalink) Old Jun 8th, 01, 04:40 AM Thread Starter
Join Date: May 2001
Location: Eastover, sc usa
Posts: 2

Hi I have a problem that I need information on how to trace it. I have a '86 IROC Camaro with a 305 TPI, the dist. is a GM HEI. I was backing the car up and it was running fine and after I startined it and backed up a couple feet it suddenly quit all at once. I checked the module, cap and rotor and all are fine. When I checked the wire (pink) marked "Bat" with the ign switch on it doesn't have power and there's a plug going into the cap with 3 connectors also with one side marked for power but it has no power coming from it also. I don't have a diagram but believe those two wires are supposed to be "hot" when the switch is turned on. But I don't know where they go but I would guess the ECM but can anyone tell me where to look to trace the problem and why I'm not getting power going into the coil? Also If I check continuity from the single pink pos. wire next to the tach. wire on the cap I have continuity from that positive wire straight to ground, I don't think that should be possible and maybe I have a short? Any further information or pointers on where to look or test would be appreciated, thanks.
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post #2 of 6 (permalink) Old Jun 8th, 01, 07:56 AM
Senior Tech
Join Date: Jan 2001
Location: Raleigh, NC
Posts: 1,046

does your engine tun over or is it complete dead? check fuses and relays...A Haynes manual would probably be most helpful in terms of the wiring...Still, fuses and relays are marked under the dash and/or under the hood...
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post #3 of 6 (permalink) Old Jun 8th, 01, 12:25 PM Thread Starter
Join Date: May 2001
Location: Eastover, sc usa
Posts: 2

Hi and thanks but it does crank but will not run or even try to start and will only turn over by the starter. Also I did check the fuses and relays, any ideas on where else I might be able to check and why I would get continuity to ground through a hot wire? I'm not sure if that should be normal and I don't have a Haynes book but will get one of those. Has anyone ever had a similiar problem or maybe there is something I'm over looking or haven't checked yet? Thanks.
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post #4 of 6 (permalink) Old Jun 9th, 01, 03:12 AM
Senior Tech
Join Date: Jan 2001
Location: Raleigh, NC
Posts: 1,046

when you think about it, your wiring could not have "suddenly" changed. If fuses and relay look okay and if the engine turns over, I would also consider the possibility that the fuel pump took a vacation ... check your fuel pressure ...
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post #5 of 6 (permalink) Old Jun 9th, 01, 06:07 AM
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Join Date: Jan 2001
Location: Washington State
Posts: 90

You need (3) things to make a vehicle run so you should concentrate and eliminate them one by one. (1)SPARK? Do have a spark at the electrode when you crank? You can short the plug wire out and watch for a spark or just remove a plug and watch the gap? If you have spark it's time to look at (2) FUEL? You might have to plumb in a fuel pressure gage or try to hear the pump running. Can you smell fuel? The third thing is COMPRESSION, you obviously have that since it was running. Concentrate on one at a time and do not replace random components in hopes of finding a bad one. My first step would be pull a plug and look for spark.
Hope this helps,
Michael Starmer
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post #6 of 6 (permalink) Old Jun 10th, 01, 08:30 AM
DOUG G's Avatar
Join Date: Mar 1999
Location: Maryland, USA
Posts: 19,624
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brother-in-law had a 91RS, and had ? "same problems" driving down the road and then nothing, cranks but no spark or start. found to be the positive wire to the computer.....gotta love those " smart cars".. good luck.

My '68 Camaro
Doug G.
68 Camaro
406 ci.
[email protected] W/ 2.73POSI.
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