I am having the same issue with 0 degrees timing when cranking the engine over. Did you ever find a resolution to this issue?
I'm also having this issue, did you ever resolve it, if so how?
I have not. I do know that I am having a tough time getting the pesky P1336 with no luck. Am awaiting spring weather and use of a Tech II to try and resolve.
What combo is your engine? How far is your tuning coming along?
It's actually a ls1 6.0 turbo nitrous setup, I have a start up tune but it won't stay running long like 3 seconds. Most of the time while cranking I'm seeing 0 timing. I repined to a newer ecu. So I'm not sure of its in the tune or the wiring.
That sounds like an Anti-Theft issue.
Maybe but vats is off. Is there something else tied into the anti theft?
Does anyone know what the resolution was to Richard_T's issue?