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1983 Porsche 944 throttle position switch or DME relay

Tiny
HARLEYFX
  • MEMBER
  • 1983 PORSCHE 944
  • 4 CYL
  • 2WD
  • MANUAL
  • 114,000 MILES
Car seems to flood out and stall after driving a few miles. It will continue to run if I keep the rpms up but smokes and smells like gas. I have replaced the pressure relief valve and fuel pump along with vacuem lines.
Thursday, November 4th, 2010 AT 6:51 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hi harleyfx, Welcome to 2carpros and TY for the donation

If its black smoke and smell like gas its running to rich and can be caused by the following below

1. Excessive fuel pressure can be cause by restricted fuel return line or defective fuel pressure regulator.
2. Defective Oxygen Sensors.
3. Leaking injectors and fuel pressure regulator.
4. Coolant temperature sensor out of calibration.
5. Restricted air intake system.
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Friday, November 5th, 2010 AT 2:49 PM
Tiny
HARLEYFX
  • MEMBER
  • 2 POSTS
Did not satisfy my queery. It run good for 30 min or so then acts it is running rich and wants to stall. Have already changed pressure regulator with no change in performance.
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Friday, November 5th, 2010 AT 9:55 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure with a fuel pressure tester and comeback with the readings
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Saturday, November 6th, 2010 AT 9:06 AM

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