My car only starts sometimes

Hello,

Possibly. I would double check the electrical connector going to the Crankshaft Position Sensor[CKP] and the Ignition Control Module [ICM] for any damage or unwanted resistance. Also check the wires from the CKP to the ICM for damage or unwanted resistance as well. In the diagrams down below I have included the engine management wiring diagrams and the guides for how to find unwanted resistance in an electrical circuit by the voltage drop method. You will need to use a Digital Multi Meter [DMM] to go through these guides, so here is a link below explaining how to use one, if needed:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros