Question about Chevrolet 1500
First could you please give me the make, model, and year of the car in question. The problem you are having, was this the reason you first replaced the fuel pressure regulator?
The fuel pressure regulator is operated by vacuum lines, and usually it would have a leaking diaphragm, which would allow raw gas to be sucked into the vacuum line but since this one is new I doubt that is the problem.
There are also a couple Orings, and a gasket in the throttle body that could leak gas into the manifold also which is where I think your problem lies, so this is where I would start checking first. Let me know how this turns out.
Posted on Jul 21, 2009
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Posted on Jan 02, 2017
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