SOURCE: 99 4runner misfire
make cranshaft gear has not spun under timing cover ive seen it happen before
SOURCE: start and diesss
p0456: evap system. sensor failure
p0172: evap system. intake blocked
p0778: exaust valve control. solenoid/ecu faukt
p0300: cylinders misfire. check ht/ignition leads
p0301,303,304,305,306: same ht leads
hope this helps..
SOURCE: Misfire with error codes P0300,P0302,P01303, P0102, P0748
have you checked the wires for holes.
SOURCE: Took my car to Autozone and came up with P0300,
The codes are misfire codes. Try changing the spark plugs and spark plug wire first, that's usually what it is. You may need to unplug the battery afterwards to reset the light, just unplug the positive cable for 5-10 minutes to do this, then plug it back on. If it comes back on you may need a new coil pack, but that's usually rare that happens.
SOURCE: error codes p0300 p0304 p0604
Regards,
Tony
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