2001 Pontiac Grand Prix engine has no spark

Hello, I'd have to do my own testing,as far as the wiring circuits. I would'nt replace anything without testing the wiring circuits.

What is the litre size of your vehicle? Are you missing anything besides spark, is there an injector pulse, during cranking? Any codes?

the engine is a 3.1L. I don't know what you mean by injector pulse, but there were no trouble codes when I used the scanner to check them.

The 3.1 shows to have two separate crank sensors. I'm not sure which one you replaced? The one I usually think of first is the one that plugs into the ignition module. I can't tell you that sensor is faulty, I'd have to look at it.

If you do a lot of cranking and the injectors are pulsing, you may have flooded the engine, check the plugs.

You could use a noid lite on the injector plug, crank the engine, if the noid lite pulses, there is voltage and ground at the injector/s. You could probably use an led testlite to check for pulse.

I'll give that a try tomorrow then...Thanks a lot!