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Hello, a very common problem for cylinder misfires are the ignition coil packs, remove the spark plug and replace the plugs if necessary then replace the coil pack if the misfire persists, the #3 cylinder it at the cylinder head near the firewall and is the one in the middle of the head.
p0301 p0302 p0304 p0306 these are all misfire codes im gonna put his in simple words for you is the vehicle running good if it is have the codes removed there stored in the computers memory a parts store has a ob2 scan gun they can erase codes have you tried to have them erased now if the light comes right back see what codes its reading now i looked up all the codes there all refering to the work that was done on your car im not saying the work was done wrong but unless you reset the codes now if they come back the p0351 and p0352 has to do with the ignition coil but i promise you this if your car isnt missing with all theses codes then all that has to be done is erase codes get back with me tell me how it turns out some parts are not compatable with foreign cars
I have a 1999 ford escort 2.0, its got a miss on cylinder 3 and 4. I changed the wires and the coil pack but its still missing. When scanned I get code p1506, p0303 and p0304
P0300 indicates that there is multiple miss fire in the ignition system. P0303 and p0304 indicates the miss fire is in cylinder #3 and #4.
Replace the spark plug, and wire set, and rotor and cap if there is one. Can not remember if there are coil packs on the civic, the age thing. change the fuel filter and clean out the fuel injectors with fuel injector cleaner for the next 3 full ups.
When the spark plugs are removed, inspect them for condition, if there clean or dirty with carbon build up. which would indicate how the engine is running. Keep me posted and drive safe.
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