89 chevy TBI 350 idles really crazy?

Hickman09'

New member
Mi 89 chevy silverado tbi 350 idles really iradically, i'm sure its the vehicle speed sensor but i wanna be sure, any input would be great, also none of the interior lights work except for the gauge lights, idk much about wiring so also any idea would be great thanks...
actually tha vss cud have alot to do with it, if the sensor is telling the computer that the vehicle is moving the speedometer will jump and tha idle will increase and decrease, but i want to absolute sure that is what it is, ive checked tha idle air control and all the vacuum lines, its gota be the vss or the tps, but idk, not trying to be a smartass btw, and the interior lights are a completely different problem and idk where to start on that one
 
check for vacume leaks first. then check fuel pressure. im betting the fuel pulsater has a hole in it. your inside lights probably have nothing to do with this problem. or it could be your idle air control solonoid is bad. is the check engine light on?
 
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