Check fuel pump pressure when the problem happens. You may have a weak pump.

Answered by Jacobandnickolas (expert)
57,318 answers provided

I will check the Fuel Pressure tomorrow morning. I have a test gauge on the way. I did find a couple of vacuum leaks and re-connected them. I also checked the resistance of the injectors and found them all to read 12.6 except one and it read 13.7? I don't know if this was good or bad. These readings were taken with the engine cool. Should I do it again with the engine warm? Just out of curiosity, would this condition exist if the Coolant Temperature Sensor (CTS) were malfunctioning? I had a ford Bronco do the exact oppisite, Ran good once warmed up, but flooded like when cold. I'll let you know tomorrow morning how the Fuel Pressure test goes. Thank you.

Response from davidgooch
2 questions asked

The CTS is designed to tell the computer how rich or lean the fuel mixture should be based on ambient temp and coolant temp. So yes, it could play a role. However, I would rule out other things first.

It used to be so much easier when cars didn't have so many electronics. (lol)

Answered by Jacobandnickolas (expert)
57,318 answers provided