ken luce
Junior Member
Hi my truck streted sputtering no rpm no power.check engine light came on shortly afterq. so i checked with onboard code scanner codes 1521 1414 0406 0158 were recorded. After mecanic checked with his scanner he erased all codes and did running test .it ran smoother on idle and then a code came back affter running for 3 to 5 minutes. he noticed all firing were good.but injector number 4 has no pulse.all other injector are reading good same numbers.he even tried forcing signal to injector 4 with his scanner but not working he figured wire could be damaged between ecm and injector.squirrel nest on top of intake on other side was good indicator that wires may been chewed.cant find no damaged wiring so I checked with ohm meter ground is good and i have resistance from ecm to injector on number 4. Where do i look now to fix issue?