Have smog code p0 300 n p0302 n p0303 misfires n cylinders 2 and 3 can someone help me fix my daughters car

50

Asked by Nov 07, 2015 at 07:25 PM about the 1999 Honda Civic LX

Question type: Maintenance & Repair

Changed coil cap rotor plugs  
map sensor air intake
sensors of 02 sensors
please help

2 Answers

79,015

Should include new wires on it, po300 is a random miss fire, causes also includes wires, and water in the gas, put an additive in the gas to dissipate the water that has an isopropel base like what is in the Red bottle of Heat. There are others with isopropel that work just as well if not better. I just can't remember the brands.

585

Christy's Dry gas, run it through!!

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