I have removed the fuel pressure regulator as a possible source of the problem. I cannot pass any air through the regulator, even if I apply vacuum to the vacuum port. I ahve tried cranking the engine with the regulator return line disconnected, and can get some fuel out of the unit, when the key is shut off crank, but never during cranking.
How can I test the regulator?
Could the coolant temp sensor be a problem as well? Could it be reading that the engine is very cold and giving more fuel?
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Wednesday, April 25th, 2007 AT 7:17 PM