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post #1 of 3 Old 12-11-2012, 12:10 PM Thread Starter
Garrett Booster
Join Date: Apr 2007
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Weird intermitant electrical problem

Ok I've got a weird problem with my 87 CSX. It will be running fine with no issues then suddenly turn off like the key was turned off. If it's driving down the road it will catch and stay running. It just seems like the car hits overboost even with the car under vacuum conditions. If it's idling it will die but start right up like nothing is wrong. Occasionally it will set the check engine light but the code goes away when I turn the key off to do the key dance. I replaced the Hall effect with a new borg and warner peice and there is no change. Is there anything else it could be? I know there's not much to go on.
The one time I got a code it was a 14 which is map sensor electrical, Would that cause a key off feeling?
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post #2 of 3 Old 12-11-2012, 10:41 PM
TD New Guy
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Re: Weird intermitant electrical problem

Possibly a bad map, this was common during this build period. I spent 15 years during this time in a Dodge dealer, with all the ASE cert's you could have. Just getting back into cars.
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post #3 of 3 Old 12-12-2012, 06:29 AM
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Re: Weird intermitant electrical problem

Start with a wiggle test on all of the wiring and connectors especially the HEP connectors and wiring.
The car shutting off and restarting right away is an electrical issue.
Years ago my Daughter In Law had a Reliant and when the car would hit certain bumps it would shut off and then restart immediately.
I could get the car to shut off everytime I moved the HEP connectors.

Also be sure your main ground from the manifold to the firewall is intact/secure/clean.
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