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Registered
Join Date: Apr 2007
Location: Provo, Utah
Posts: 216
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!990 C4 Cab very erratic running problem
I have a 1990 C4 Cab that is having problems. It will start then shut right off. If I start it and hold the throttle at 3000 rpm it will run but every 5 seconds or so it's like someone flips a switch and it drops a 1000 rpm and then comes right back to 3000 rpm. Seems electrical related because of the sharp drop it makes. Any ideas?
P.S. Drove the car yesterday and it ran fine but the day before it was at the body shop and they said it was acting up.
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1999 Boxster 1980 911 SC Targa 1974 914-6 GT endurace race car 72 911 RSR clone (needs full restoration) |
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07-16-2015, 04:22 AM
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Join Date: Jun 2015
Location: Hilton Head Island, SC
Posts: 723
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Do you have a chip installed? Stock clutch?
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07-17-2015, 09:54 AM
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Registered
Join Date: Apr 2007
Location: Provo, Utah
Posts: 216
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Clutch has been changed and it has no chip
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1999 Boxster 1980 911 SC Targa 1974 914-6 GT endurace race car 72 911 RSR clone (needs full restoration) |
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07-17-2015, 03:28 PM
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Registered
Join Date: Oct 2013
Location: Prescott, AZ
Posts: 1,062
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I had a similar problem that turned out to be a bad cell in the battery. New battery solved the problem. If battery checks out okay, I would check all of the ground connections and ground wires, as well as both battery cables.
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1990 964 Coupe 1986 Carrera 3.2 Targa |
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07-17-2015, 08:34 PM
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