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It turns out I have two problems. Well, actually, I probably have lots more than that. But two problems that I'm trying to deal with.
What started this whole process was trying to figure why the car would periodically cut-out, or die and easily restart. Upon further investigation I've found that part of the engine wiring harness was replace. Unfortunately by somebody without proper tools. The splice at the passenger side firewall had 5 loose crimps, one that just fell out of the connector when I moved it, the other four came out with only the slightest of tugs. I recrimped everything and the cutting-out problem seems to be fixed.
The "short" appears to be more one of excessive load that a short. I replaced the 25 amp ATC fuse with a resettable 30 amp ATC circuit breaker and went for a test drive. Half a mile down the road it popped. I had the headlights w/highs on and the rear window defogger. I turned off the lights and defogger and went for a drive and all else proved ok. So back home for some testing.
I clamped a current probe over the fused line from the battery. What I found is that the car draws 12-14 amps when the engine is running and everything else is turned off. That number jumped right out at me as being way to high. Does anybody know what a B21 non-turbo engine should draw?
It sounds like Paul's suggestion to check into the fuel pumps is the next place to go.
Cheers,
Jim
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Jim McCorison - '82 244 121k
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