I am stumped. My 1992 blazer 4.3L CPI W series suddenly started choking for fuel and died on me as I was driving down the road. Now, it will start while cool but when it reaches operating temp. it acts like it s not getting fuel sputters and dies om me. I have replaced fuel filter and checked my gas. the fuel pump is humming. I am getting 57 psi at the schrader fuel pressure valve, so it seems I am getting fuel pressure up to my multi central port injection. I have tried disconnecting my map, oxygen and throttle position sensors
1 at a time and trying to start it but no luck. I bought a sunpro code scanner but it only gives me code 12 which means sensors are working ok. Any ideas?- posted
18 years ago