SOURCE: Truck idles rough but at
Give it a complete tune-up, New spark plug and wire.new Ignition coil. Depending on the engine either replace ,Cap and rotors or coil packs.Also might want to get the fuel injectors service
SOURCE: Check engine light comes on. p0171 and p0351 codes found
From Lusty Kid:
I know the economy is bad, but change all of the plugs. Check your PCV Valve hose, 150 rottens them out allowing air to be sucked in, thus all kinds of codes.
Depending on mileage. Dismount the EGR valve and clean passages. If you are really good dismount the throtle position sensor body and clean out passages with Choke Cleaner., dismount where the EGR valves connects to the engine, clean out passages. Also check the hose thats behind this mounting to ensure is not clogged. If clogged clean it out. If not replace it. Is about 1.5 ft. long, connects to the PCV Valve Hose.
When is the last time you change your harness. Can't remember??? Replace it. Good Luck
SOURCE: 2000 CIVIC System too lean Cylinder 3 and 4 misfire Deteced
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