06 trailblazer 4.2 won't start and sometimes won't crank. There is pressure (though I haven't measured how much) at the test point for the fuel rail. The only code stored is throttle body performance p1516.
So I've searched and searched, and I think I know what is going on. My trailblazer would go into limp mode and say the throttle body performance was bad. I'm thinking this is a bad wire because I took the throttle body connector off and rotated it 360 (put a different strain on the wire) and this went away. I have a new connector coming, though now it is looking like it might be right at the crimp and I don't need a new connector to fix that...
I don't think the throttle body would keep it from starting though. Trying to start it, it also sometimes won't crank, mostly when I don't try to crank immediately after inserting the key. Battery voltage is 12.6
Tldr, intermittent crank, constant no start, p1516 only code, fuel squirts out of test point, battery 12.6 volts.
So I've searched and searched, and I think I know what is going on. My trailblazer would go into limp mode and say the throttle body performance was bad. I'm thinking this is a bad wire because I took the throttle body connector off and rotated it 360 (put a different strain on the wire) and this went away. I have a new connector coming, though now it is looking like it might be right at the crimp and I don't need a new connector to fix that...
I don't think the throttle body would keep it from starting though. Trying to start it, it also sometimes won't crank, mostly when I don't try to crank immediately after inserting the key. Battery voltage is 12.6
Tldr, intermittent crank, constant no start, p1516 only code, fuel squirts out of test point, battery 12.6 volts.