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Registered
Join Date: Mar 2019
Posts: 9
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911 SC Dead CDI?
I purchased a 1983 SC cabriolet a couple of weeks ago. The car passed a PPI and ran very well for most of ~120 mile drive home. Then the fun started.
About five miles from my house, I experienced a slight hesitation going uphill. That worsened progressively and the car died about a mile from my house. I got the car restarted and into my garage, but the car was running very rough. After reading the forums, I replaced the relay under the passenger seat, but the relay did not fix the issue. The spark looked weak (more orange than blue), so I replaced all plug wires, distributor cap, rotor, and ignition coil The problem progressed to a crank but no start condition, though I did get the car to start once after I got the new coil. It ran for about 5 minutes; somewhat rough at first and it started to smoot out. I thought I was in luck, but then the car died... Since then, I have discovered that I now have no spark. My "green wire" looks okay but I realize it could be bad. The CDI box makes the squealing noise as expected. I tested between pins 31D and 7 at the CDI connector and I get 586 ohms resistance and 0.8 volts ac (not sure how to measure pulse). I've read countless posts and I'm somewhat at a loss at this point. I would appreciate any suggestions. |
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10-04-2020, 05:30 PM
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Registered
Join Date: Feb 2013
Posts: 155
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Sounds like an ecu issue I would have it tested
Best $95 dollars you can spend Google ecu experts in Florida |
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10-05-2020, 04:32 PM
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Registered
Join Date: Oct 2004
Location: S California
Posts: 7,966
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Send it to Bob Ashlock. He knows these things inside and out and can stress test it for you.
__________________
1970 911E Sportomatic Albert Blue 1971 911T Sunroof Coupe w/ Twin Plug 2.5 MFI 1973 911E Glacier Blue 1973 911E RSR Tribute Viper Green w/ 3.5 Twin Plug MFI |
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10-05-2020, 08:15 PM
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