96 Silverado 5.0 misfire
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96 Silverado 5.0 misfire
I have 96 silverado 1500 5.0 4x4. I did a tune up..plugs, wires, cap, rotor, air filter... when I put everthing back together and started the truck. The CEL came on and I noticed I forgot to plug the sensor plugs for the air filter back in, when I pluged them in the light went away. After a day or two the CEL started to blink (P0301)..It has been mifiring ever since in cyl#1. Did a compression test and all was fine in that respect. I changed the fuel filter and re-replaced the cap and rotor just in case it was bad, no change. Also since it started I can here what seems to be tissing sound, maybe an exhaust leak? Im stumped! We did do one other thing because I have spark in all plugs we pinched the fuel return line closed about half way, when we did this the misfire went away. Any ideas would be awesome..
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