After you drive a 240 for a while, you get a pretty good idea of how long it takes to start. If its going to start at all, it seems to be a chug, chug, chug then it fires. Over the past month, my '90 240 (with 195 Kmi) has been starting fine whenever it is stone cold, but after it has warmed up, it seems to take forever to start. It always starts and runs fine, but sometimes, as it is cranking, I start to think that this may be the time I will have to call for a rollback.

Although I had no check engine light, I changed the FI temperature sensor because it seemed to be the most obvious culprit. It made no difference. Does anyone have any suggestions on troubleshooting this problem before it becomes terminal and inconvenient?

Thanks,
Rich