OK. I've tried to ask about this before, but the car just continues to do what it likes.... Wife's '89 244> 134K miles; good mainenance. If she uses the 245 for a while and the '89 sits for, say, 4 weeks then we have weird starting problem. Did it yesterday. Went out, hit the starter, fired first revolution then died. Turned over fine after that but would never start. Check ECU readout...1-1-1, good. Rolled fuses. I've already replaced the left fender well blade fuse with ipd kit. Checked bat connections, various other connections. Charged battery. Same. Tonight came home, stuck in key, turned over, started right up. What the heck is this????? Been doing it for 3 years. Ghosts?? Help. Dennis

Check the battery cables, not just the posts. Remove the cables and check the wiring at the connectors specially on the + side. If you see green powdery stuff, your cables are rooting from the inside. Use a deoxydizer spray and clean them well.

It might work!

The problem you describe is typical of a defective engine speed sensor or a cold sloder joint in the fuel injection/pump relay.

On my 245 it was the magnetic pickup for the ECU, you know the one that sits on the top of the bellhousing. Drove me nuts for months.

Also, I suspect you replaced it????? Not a matter of dirt or connection??? This is the best idea yet!! Thanks, Dennis