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90 c1500 has issues with an inconsistent misfire

I’m currently having the same issue, at idle my rpm’s drop and then Increase, I can also feel a slight misfire while in park. I’m going to test my pressure at the throttle body today. I’ve done everything you have done as well
- obswill
- Post #4
- Jan 13, 2022
- Forum: Engine Performance + Maintenance
91 350 idle while in gear problem

Did you ever figure out your problem
- obswill
- Post #29
- Jan 13, 2022
- Forum: Engine Performance + Maintenance
1994 c1500 350tbi surging idle

1994 Chevy c1500 5.7 TBI I’ve been chasing and intermittent misfire and loping idle with my truck. I replaced and tested the Engine coolant temp sensor New EGR and solenoid. New MAP sensor New IAC New TPS Replaced all fuel lines, new pump, rebuilt throttle body (with gaskets) new...
- obswill
- Thread
- Jan 13, 2022
- 350 tbi c1500 rwd 350tbi misfire rough idle
- Replies: 0
- Forum: Engine Performance + Maintenance