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Hi Gordon, my name is Jason.
Are you working on the engine yourself or is somebody working on this for you and relaying the information to you? Which analyzer is being used specifically?
If you are not working on this yourself what kinds of questions did you have for me? How is it I can help you?
I agree, this is an electrical or fuel problem, not a mechanical problem. Here is the 1000 dollar question. The temperature light is flashing/going off. If the scan tool/analyzer is hooked up to the engine. What does the temperature say according to the scan tool? Does the scan tool say the engine is hot, or does it say the engine is running a normal temperature (160F or so)
Is that normal according to the scan tool or according to something else?
The engine has a temperature sensor and that sensor tells the engines computer what the engine temp is. In turn, the engines computer tells the gauge what it should be showing for a measurement. So what's important here is what the engines computer "thinks" the temperature is. The way that's done is by hooking up the scan tool to it and seeing what that temperature is reading in the scan tool. Whatever the scan tool says for a temperature is what the engines computer thinks the temperature is. This needs to be done when the temp light is actually flashing, and not when it's behaving properly. If the engines temp sensor is bad, or if there is a short in the wiring between the temp sensor and the engines computer that can make the engines computer "think" it's hot when it's really not. Does that all make sense.
Do you have any further questions for me on the issue?