I need a wiring diagram for my car for the ECU so I can figure out what is wrong and why my car is getting no spark
Nov 17, 2025 at 9:14 AM
ECU Wiring diagram harness?
2004 SATURN ION
SALLYV
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I would start by checking the crankshaft position sensor. When they go out the spark will stop. Also check the fuses. Here is the wiring diagrams for the PCM and engine and I will email them to you as well. Check out the images (below). Let us know if you need anything else.
Images (Click to enlarge)
Nov 18, 2025 at 10:54 AM