Main Menu

1979 911SC Autocross Misfiring

Engine

Vehicle Information: Model: 911 sc; Year: 1979; Body Type: Coupe; Total Mileage: 156000;

I've written to you before on 5/9/02 (running on 3 or 4 cylinders over6000 rpm). Well, I still haven't fixed it nor can the shop I go to figureit out. I've done more road testing and if I go around in a circle atleast twice, skid pad style, really pushing it, when I let off thethrottle it will start missing on a couple of cylinders. The instrumentsare all reading normal. If I continue driving, it usually keeps missingand the temperature starts to rise. If I floor it and let the rpms run upto 5 or 6 thousand rpm, it usually cures itself. Still the best way toget all 6 cylinders running is to shut it down, wait ten seconds thenrestart. The rpm's don't have to be high to make it start missing. Itseems that g-force and lifting the throttle will always make it miss.There is no white or black smoke coming out the exhaust during thisoccurrence. Any more input would be greatly appreciated.

You must log in to view answers associated with technical questions. Join PCA to participate in our community.
0
No votes yet