I have the code P0301, misfire, Checks the spark plugs they are fine, check the plug wires they are fine as well, check the coil pack only plug 1 has no power, check the 3 pin connector, A: cylinders 2&3 I have pulse B: Middle wire, I have constant 12V C: Cylinders 1&4 no pulse/ I assume its from the ECM, can someone please help thanks
SOURCE: 2002 mazda tribute es
check to make sure #5 spark plug wire isn't bad,make sure you have not wired it wrong from changing plugs. You should purchase a chilton manual if you haven't already
SOURCE: #5 cylinder misfire
I have a corolla and had #4 cylinder misfire also diagnosed at autozone. After changing the spark plugs, problem persisted, along with the same error code, so they recommended changing the spark plug wires, and that is what fixed it. I would have changed the rotor cap too, but was low on dough. Glad that was not the problem.
SOURCE: How do I wire a 4 pin flat plug to my 1996 Mazda B2300
Rob I can't remember if your Mazda has separate brake and signal lights.
I think that model year did. If so you will need a module to make it work on a 4 pin trailer connector. These will be readily available at your local auto supplier at a reasonable price (Around $20). It will also have a wiring diagram in the package.
If the signal and the brake light are on the same bulb it will be easier.You may be able to buy a package at your auto supplier that you simply pull a plug apart at the rear of your truck and insert the complete harness.
SOURCE: No spark in '05 Mazda 6
any wires not plugged into there respective places, any sensors the old engine had that this one don't, did you use the old distributor for your coil setup,I think it might be, luck
SOURCE: We've checked the hoses, and
You could have a bad coil in the back cylinders. Oil in the plug holes will short out a COP (coil on plug) in these engines, is is a known issue in these (Ford) engines. Do the same routine for the back cylinders, and you should also plan on replacing your valve gaskets/plug seals.
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