nlpy8b

Can't get my c6 corvette to crank during compression test.

I have the coils, injectors unplugged. Fuses/Relays removed just to be safe.

All plugs are removed.

Throttle body stuck WOT.

Attached compression tester to cyl #1 and then try to crank motor over with push button ignition......

Nothing!!!!

Can't get to the crank pulley with my procharger setup on it to manually crank.

Is there some kind of electronic safety device that is keeping it from cranking? Please help!!!

Thanks.

nlpy8b

FYI- Unblocked the throttle blade and the motor would crank.

In summary: warm up motor, remove all spark plugs, and pull the fuel pump relay.