Im working on a 94 Chevy 1500. Its rough
idling/stalling while parked after its warmed up.
We have changed the IAC, TPS, MAF Sensor, Fuel
Pump, rebuilt the tbi. I cant figure it out and it
bothering me. Also when i unplug the vaccuum
hose from the backside of the tbi the truck idles
smoothly, but starting up is rough with a high idle.
Does anyone have an idea? Also could it be from
the input fuel line being bent?
is that vacuum line blocked somehow ? a restricted fuel line can't be good , does the fuel line get near an exhaust or get warm somehow ? check for broken or loose vacuum lines , what do the plugs look like ?
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