P0300 Diagnostic Code - Random Misfire
P0306-0305 are for misfire in those numbered cylinders specifically.
Symptoms.
Engine may stumble or miss
Engine may be hard to start
you may notice no issues
Cause
Failing spark plugs or spark plug wires
Bad coil or coil pack
Failing oxygen sensor(s)
Bad fuel injector or more than one
Stuck exhaust valve
Bad catalytic converter
EGR valve or valve passage clogging
Bad camshaft position sensor
Bad PCM or ECM
The Fix
Best first action is a tune up, new plugs, wires, inspect all hoses and wire connections then reset the code. If it returns you will need to narrow it down to a system, coils and coil packs should be tested, catalytic converters for function ( do you smell rotten eggs?). A misfire that jumps cylinders could indicate a lean condition, do you have any other codes along with the 300? this will help clue you in to the source, check valve function to make sure they are opening and closing fully.
This is probably pone of the most difficult codes to troubleshoot, so start with the basics and work your way into the more expensive options, in many cases a good old tune up solves the problem, back it up with a fuel system cleaning and see where you stand.
P0300 is for random engine misfire p0301 and p0305 are misfires on cylinders # 1 and #5 www.lextechautomotivellc.com
Yes. At least one or more of these codes would come up, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308.
P0300 would be random misfire. P0301, P0303, P0305, would be cylinders 1, 3 and 5 are misfiring.
P0305 and P0306 indicates that cylinder number 6 is experiencing misfires. A misfire occurs when an insufficient amount of fuel is burning in a cylinder. A misfire from one or more cylinders can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure
P0420 Catalytic Converter is bad p1320 misfire P0305 - Cylinder 5 Five Misfire
Trouble code P0305 means:Cylinder 5 misfire detected
An Actron P0305 scanner is used on a 2002 Chrysler Town & Country Limited and a code of P0455 pops up. Should I be concerned about this code or can I simply delete it and keep on driving the vehicle. Note: This code comes on every 75 miles while driving in the city, but never comes on when I go on a long trip of over 600 miles.
Trouble code P0305 means:Cylinder 5 misfire detected
Trouble code P0305 means:Cylinder 5 misfire detected
P0305 is cylinder number five misfire detected.
Trouble code P0305 means: Cylinder 5 Misfire Detected
The diagnostic code P03xx is not specific to one vehicle manufacturer. In fact, most codes starting with a P are not manufacturer specific. In the case of P03xx codes, the P03 indicates the issue is with the ignition system. The xx in this case, assuming it is between 1 and 12 indicate the cylinder in which the problem ocurred. P0305 indicates a Cylinder 5 misfire has been detected. For a complete list of OBD-II Diagnostic Codes, go here: http://www.obd-codes.com/trouble_codes/