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29/12/2020 10:17 pm
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Hello I'm having a problem with trouble code P0172 on a 1996 chevrolet monte carlo 3.4L Dohc engine... I already replace the throttle position sensor.... tps sensor... Both oxygen sensor and the light still comes on... Can u please help me out... Car only has 127k
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I sprayed my maf sensor and changed the fuel pressure regulator and the code still comes on... Engine is nice and quite
Was the regulator broken? Did you test the fuel pressure?
how do i do a fuel pressure test