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2005 Chevy 4.3 misfire p0303 p0300 p1381
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Question
Peachesandherb
Looking for help with my truck, it has a 4.3 and has had a misfire since I got it. I've replaced distributor with ac delco, oem crank sensor, coil, plugs, wires, ignition control module, and coolant sensor. The truck is throwing a p0300 p0303 and p1381 code currently. The p1381 code envolves no communication with brake module which I suspect is from me pulling abs fuse due to an abs sensor malfunctioning and locking up the left side when braking. I have a hard time believing the misfire is due to that abs fuse though. Any idea on what I should check next? Compression showed 145 on all 6 cyl, all new Injectors which are bostech remans. Fuel pressure was healthy as well.
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