95 Corsica 2.2, won't start, has spark, can hear fuel pump run, no pulse to the injectors. Put in a new crank position sensor, and a used coil pack and module, still won't start. checked fuses on the left dash panel, any other fuses? Any ideas?? Still no pulse to the injectors.

 

Proper fuel pressure should be around 40-45 PSI average.

If you are getting spark and air, your lacking in fuel.

With the 3.1L v6, if one injector goes bad, they all shut off to protect the ECM.
Problem is finding which one is bad, as they are expensive.

I suggest getting a multi-meter and checking resistances or open circuits on each injector, take the top of the engine off and then unplug then and you can do it right there...

Or if worst comes to worst, start swapping...

With me, I just replaced all of them, but then again my car is gona last another 10 years as its not rusty at all...


-----------------------------

With failed injectors, you will still get spark.
Spark is controlled by the ICM, which is controlled by the CPS.

Hope this helps, please post your results or other questions!