That is correct, there are no codes. That leads me to believe there is a fuel issue. If the pump is weak or goes bad, it won't set a code.
As far as the ECM dumping fuel, I will try to explain what I meant. If the coolant temp sensor thinks it is very cold out, the ECM will respond by making the fuel mixture richer. It does that because the colder it is, the more fuel it needs to run. I had a Chevy van about 3 weeks ago that would run fine one minute and then start missing and stall and not restart. Using a live scanner, I saw that the coolant temp sensor thought it was -40 degrees F. It was causing the engine to flood with fuel.
As for the word simply, I meant to say simply the fuel pump is bad.
The spark has me a bit concerned. However, I would like to know the fuel pressure results before moving on.
Friday, August 8th, 2014 AT 9:02 PM