Question about 1992 Chevrolet K1500
Own 92 chevy 5 speed 1500, 4WD 4.3.. recently changed engine to a 1995 350 TBI block. all electronics 1992. has 350 TBI engine, computer, injectors, throttle body and computer. Still has 4.3 wiring harness and 02 sensor. EGR valve is 350 and will move up and down. 02 sensor and EGR valve from salvage yard.
Problem is it idles way too fast. tried adjusting timing and can reduce idle some, but at 13-14 has no power ..The engine cuts out occasionally.
Tried all the tips for checking for leaks around throttle body... no change in engine idling.
No check engine lights come on, no codes. Previously AC did not work, but after switching it now works.
How do I or what do I check now for this fast idle problem??
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Posted on Jan 02, 2017
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