Posted 3/6/2009 21:47 (#634325 - in reply to #634208) Subject: Re: Diagnosing GM throttle body.
Place the test light between the 2 wires of one injector and check for blinking light when cranking. One wire will be hot with key on. The oil pressure sender works to control the fuel pump, if you have pressure,it is not an issue.
INDY
Diagnosing GM throttle body.
