Hope someone can help me out here. I accidentally pulled the reverse voltage diode from the under steering wheel fuse box while car was running. (I know, shouldn’t have done rhat. It was dark and I thought it was the fuse puller). Car immediately shut off of course, but now it won’t restart once I put it back in. Cranks powerfully and no problems before, so I definitely caused this.
So I thought I might have created an OBD code that kept it from starting, so I shorted out the POS/neg cables for about 2 hours to try and clear memory, same problem. Checked fuel cutoff switch and it’s not popped. Tested the diode and it seemed fine. is there a chance that there’s still a code on it? Or maybe the diode blew? Is there something else I’m not thinking of? Help please. Losing my mind.
Edit: both reverse voltage diodes test out fine, and they can’t be installed backwards. Also, when trying to connect a diagnostic to the OBD2 port it just says “error” after it reads. But the port is getting power because my diagnostic isn’t self-powered. Finally, I noticed today that the check engine light does not come on when first turning key, and it did before. Double checked ECM fuse, but not sure where to go from there.