Hello, I am new here and I have a 2003 Sunfire with the 2.2 Ecotec that won't start. I have spark, fuel pressure, but no fuel injector pulse. What controls the fuel injector pulse? I need to get this thing running ASAP! Thank you in advance to all for any help.
the PCM (aka ECU) runs the injectors.
Desert Tuners
“When you come across a big kettle of crazy, it’s best not to stir it.”
Yeah, unfortunely all fuel injectors are grounded by the ECM
You have no pulse on any of the cylinders?
Did you check the ECM ground for one thing?
- 2004 Cavalier - 124k, owned since new
I haven't checked the ECM ground but I will and post my results.
