Running problems with a 2.0, Starts Fine, Runs fine... until warm... |
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Running problems with a 2.0, Starts Fine, Runs fine... until warm... |
73Phoenix20 |
Sep 5 2007, 08:53 AM
Post
#1
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Member Group: Members Posts: 334 Joined: 15-June 05 From: Michiana Member No.: 4,283 |
1973 2.0, original engine, completely rebuilt to stock specs about 10K back. Original D Jetronic still in place... new Cylinder Head Temp Sensor installed about 500 miles back. Cold Start valve disconnected... everything else original to the car.
Professional Porsche Mechanic has completely gone thru a major service and full tuneup less than 500 miles back. Fuel system was completely checked from the tank thru the injectors and is fine... Car starts perfectly from cold, and runs fine for the first 10 to 15 minutes of driving, (which is about what it takes to come up to full operating temps)... Then it will start intermittently cutting out and missing and often will not rev over 3,000 rpm... If brought to idle, it will either drop very low, or completely stall. If it stalls, it is very hard to restart, and will only do so with the accelerator fully depressed... BUT, it does not exhibit this behavior all of the time... occasionally, it will run fine for as much as 150 miles!!!???!!!??? So, in a nutshell, it apears to be an electrical issue that is affected by the heat/vibration of the engine during operation... All ideas to help pinpoint the trouble spot will be greatly appreciated! (IMG:style_emoticons/default/beerchug.gif) |
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