cedo

Needing some help on figuring out an issue with my 02 S2k. So engine was rebuilt and after installing it’s been giving me starting issues. So I’ve narrowed the problem down to the #2 cam sensor. Although it is new I backprobes my scope in it and it gives me a weak signal. So I looked under the valve cover, and there are dings or dents on the cam. My theory was that there’s a short somewhere in the harness. So I ran two wires from the straight to the ecm and still no start. The only way I can get it to run is if unplug the sensor. And then it will actually fire up. Any feedback is appreciated thanks in advance.
worth noting that coils are new spark plugs are new cam sensors are new, timing components are new and align perfectly.

windhund116

!QUOTE=cedo;25048223]So I looked under the valve cover, and there are dings or dents on the cam.[/QUOTE]

This doesn't sound good. Do you have photos of these dents?

Thanks!

cedo

Sorry that actually a typo cams are good no dings or dents

windhund116

Sorry that actually a typo cams are good no dings or dents[/QUOTE]
So there are no dings and dents --- on anything?

Car Analogy

Yeah, like how do you typo dents and dings?

cedo

I meant to type “no dings or dents” I missed one word my friend. Hooked my scanner up and upon cranking noticed spark advance is at -10 degrees. All timing marks line up perfectly and timing components are new. I feel like I’ve been going in circles with this issue.

noodels

Have you driven it with newly rebuilt engine,or have been ?

cedo

no the car hasn’t been driven I’ve got it to start a few times but that’s it.

noodels

hope you have tried swapping cam sensor plugs ?

starchland

Camshafts/cam Gear oriented properly? Timing marks ok?