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fritz

fritz 9/7/2010

1985 Porsche 944 Base 4 Cyl 2.5L

Engine

car not starting with new fuel injectors

Have gas going to fuel injectors ,but car would not start,put in new fuel injectors car still not starting checked injectors notice injectors not opening to allow gas to start engine what is sending the signal to the injectors to allow them to open up and start the catr

3 Answers


Ladiesman217

Ladiesman217 9/7/2010

Wow what a classic car you have!!!

The most likely causes are:

1. A dead fuel pump (could be the pump, pump relay or wiring circuit);

2. A plugged fuel filter;

3. Low fuel pressure (weak pump or restricted line); or

4. No pulse signal to injectors (bad injector relay or PCM driver circuit).

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fritz

fritz 9/8/2010

i put in new fuel pump...pump is working good...new fuel filter....getting gas to the injectors but injectors not getting signal to fire or open up ...as you say in #3 it may be a bad fuel regulator pump or #4 a bad electronic control module which probably controls the signal to the injectors to allow them to open up .....let me know what you think thanx.

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0
fritz

fritz 9/8/2010

i put in new fuel pump...pump is working good...new fuel filter....getting gas to the injectors but injectors not getting signal to fire or open up ...as you say in #3 it may be a bad fuel regulator pump or #4 a bad electronic control module which probably controls the signal to the injectors to allow them to open up .....let me know what you think thanx.

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0

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