dodger65 Posted February 12, 2006 Report Posted February 12, 2006 here is the problem that has me tearing what's left of my hair out right now... 93 olds cutlass supreme 3.4 dohc vin x starts cold ok, but no throttle response (falls on its nose) until warm (or closed loop) once it's been started once, the pedal has to be to the floor (or very close) to start it--still stalls on throttle application once warm, throttle response is normal, but if it is shut off, won't restart unless floored... if map is unhooked--seems to run fine... map sends back 4.7v at the computer w/ the engine off seems to respond to vacuum changes... checked ecm grounds-ok... no codes, darn near every sensor in it has been changed before reaching me (including the map and the computer-my dad's a big parts changer... ) fuel pressure ok, rebuilt engine, no apparent vacuum leaks.... new plugs, wires, etc. checked the injectors for leaks, resistance, and flow (plugged or not) won't have access to a scan tool for a couple of days at least... kinda hoping that w/ the knowledge most of you seem to have, you might have a better understanding of what's happening than i.... thanks in advance, dodger
GP1138 Posted February 12, 2006 Report Posted February 12, 2006 Please keep the threads to one per issue. Thanks.
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