George B's 2000 Saturn SL2. “The Turtle”

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George B

George B

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So I learned that there isn't a cam position sensor and that it generates that "cam" signal. I am not sure if the signal I see in the data is an input from the crank sensor or not. Maybe if I unplug it and watch it. If no signal when unplugged it must work when plugged in.
 

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Crank no start! No spark... Came home running last night and no start this morning.


It's cold as balls here today so I have to push it into the shop.

I don't wanna work when it's cold as balls, either. Maybe that's the problem- open circuit related to temperature?
 
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George B

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It’s running.
Ended up being the ignition control module. I had a code for cam position stored that is really related to the ICM because the cam position signal is actually created by the ICM. Using my tech2 I could see I had a crank signal and injector pulse so I figured I must have a good crank sensor. I also had a wet spark plug. Then I ran through this video and determined it was the ICM because the Crank position sensor passed the tests. Luckily I had a plug in the harness up top that allowed me to test it. Man that thing was FLOODED! May need a case relearn but it runs good so IDK.
 
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George B

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Ok, I did a reassessment of this situation. The rust is pretty advanced but not as bad as originally thought. As of now I don't believe the car is just going to "come apart" over the next year however I think it may be best to send it down the road while it is still a "driver". That said the new exhaust will help with that. I will then replace our 2002 envoy and hand it down to the Kiddo.
 

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