Quote from srcomotorsport on July 9, 2022, 3:37 pm

Hello everyone, I just installed the fitech ultimate in my 408 stroker and I realized that the cylinder 4 coil is not working, I proceeded to change the coil and try and it did not work, I tried another spark plug wire and it did not work, or I tried a spark plug injector and it still did not work With the engine running, remove the spark plug cable to check for spark and there is none, and one of those times when I was doing tests, when I just turned the key, an explosion came out of the exhaust, so I realized that when I turned the key, the cylinder coil 4 is triggered seeing that I thought that maybe the cable coming from the ecu was crossed with some ground but check with the multimeter continuity from the connector of the coil to the ecu and if there is continuity and it is not crossed with any other cable, it will be that my ecu is defective