Question about 1995 Chevrolet Blazer
Thanks for the insight on my Blazer problem, but their is already a new pump and sending unit. Twice I have replaced them. Is their any thing else you can give me that might help?
Also I heard that if the throttle positions sensor sends more than 6 volts to the ecm it will not send any fuel. Is this true?
Thanks RPM Northwest
The TPS has three wires that go to it in general. You have a power lead (constant 12 volt source) , a ground, and a variable lead of 1-5 volts. If you do not have a 12v constant source check for an open or short in the sensor harness. Now you had the TPS replaced, and no start. What is your fuel pressure? If you check your fuel pressure and it is on the low side of range it will not start, nor if it does start run well.
I have to run for parts but will be back shortly. I will get back on line and be available for chat if you wish so we can figure this out further.
Posted on Jan 29, 2009
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