My ford has new wires and plugs, but it still misfires (check engine light flashes on and off) and skips. It also use a lot of gas.
Pull the exhaust off and see if it runs better, if it does it needs catylitic converters- could also have bad fuel injectors.
P0303....Cylinder 3 Misfire Detected
P0304....Cylinder 4 Misfire Detected
sounds like a new set of HT leads and plugs wouldnt go amiss(fire wires) weird name that fire wires HT stands for high tension leads in proper english .
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code reports something about oxygen sensor.
It's a 6 cylinder engine. I will have it tested today and let you know the code. Thank you sooo much!!!!
By the way, what engine size do you have?
I would have guess oxygen sensors. It should be telling you which one it actually is and that is the one that you need to change. Oxygen sensors are vital to making sure that your car is running smoothly. They can also help a lot on gas mileage when they are working properly. If you have the code number I can let you know which one you need to change. Let me know. Thanks, Keith.
what cel code does it have?
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