2.2.liter chevy s-10 has intermittent problem
Runs fine until it comes up to temperature then back fires and misses at low rpms you can give it fuel when driving and kicks down and runs fine..Gives a p0301 code. I changed plugs and wires and coil. Changed fuel filter and it ran fine for 2 days. I checked plugs all are firing great and now I hear a high pitched whine at fuel tank. Could it be a fuel pump going bad causing this? I have no fuel pressure at the rail with the key on.
Po301 is a stuck open or closed fuel injector on #1 cylinder
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