Shakes or Wobbles problem
1998 Toyota Rav4 4 cyl All Wheel Drive Automatic
Originally dealer thought there was a failed ignition coil that controls cylinders #1 and #4. After putting new coil in, problem was still present. Tested further and found there was no fuel coming out of cylinder #1 fuel injector. Tested injector and found proper power at injector but is wasn't duty cycling on the ground side. Ohmed harness from injector to ECM and found within specification. Back probed connector for all four injectors and found no output on ground side to duty cycle the injector for cylinder #1. Internal short in ECM and will need to replace. Can you give me your opinion if I need to replace the ECM or could anything else be wrong?
1998 Toyota Rav4 4 cyl All Wheel Drive Automatic
Originally dealer thought there was a failed ignition coil that controls cylinders #1 and #4. After putting new coil in, problem was still present. Tested further and found there was no fuel coming out of cylinder #1 fuel injector. Tested injector and found proper power at injector but is wasn't duty cycling on the ground side. Ohmed harness from injector to ECM and found within specification. Back probed connector for all four injectors and found no output on ground side to duty cycle the injector for cylinder #1. Internal short in ECM and will need to replace. Can you give me your opinion if I need to replace the ECM or could anything else be wrong?
Sep 17, 2010 at 2:26 PM