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aziankingz · 06-23-2008, 09:00 PM

My ka24e misfires badly and the idle drops up and down, as well as backfires like crazy. I replaced the MAF, coolant temp sensors, distributor, coil, rotor/cap, fuel filter and spark plugs/wires and the problem still occurs. At random times the idle would dip to 500rpm when i press the gas. Anyone know what this could be? I also get really bad mpg - about 13mpg city and 20mpg mixed.. could replacing the o2 sensor fix the idle problem as well as the bad mpg problem? i also have an exhaust leak from my cat..would that cause a bog in the idle when i try to accelerate?

06-23-2008, 09:00 PM	#1
aziankingz Nissanaholic! Join Date: Oct 2007 Location: NYC Age: 41 Posts: 1,735 Trader Rating: (28)	idle/misfire/backfire problem My ka24e misfires badly and the idle drops up and down, as well as backfires like crazy. I replaced the MAF, coolant temp sensors, distributor, coil, rotor/cap, fuel filter and spark plugs/wires and the problem still occurs. At random times the idle would dip to 500rpm when i press the gas. Anyone know what this could be? I also get really bad mpg - about 13mpg city and 20mpg mixed.. could replacing the o2 sensor fix the idle problem as well as the bad mpg problem? i also have an exhaust leak from my cat..would that cause a bog in the idle when i try to accelerate?