P0300 Diagnostic Code - Random Misfire
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 multiple or random cylinder misfire. No start can be dead battery, failed starter, no fuel, no fuel pressure, computer or sensor malfunction, internal engine failure, etc.
P0300 is multiple or random cylinder misfire.
i have a izuso rodeo 1999 3.5 liter i need how i fix the code po452 were is the location is the sensor and how is the sensor
Trouble code P0300 means: Random/multiple cylinder misfire detected.
replace spark plugs @wires
Yes. Trouble code P0300 means: Random/multiple cylinder misfire detected
Trouble code P1582 means: Idle Adaptation at Limit
Trouble code P0301 means: Cylinder 1 Misfire Detected
This is not a "Generic" OBDII code. That means that it means diferent things on diferent car makes.
Trouble code P1131 means: Lack Of HO2S11 Switches - Sensor Indicates Lean
where is the plug to conect the code reader on a 1990 Honda accord
car engine dies out went ac goes on