Code p0300 how to code p0300

"Basically this P0300 code means that the the car's computer has detected that not all of the engine's cylinders are firing properly. A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring."

https://www.obd-codes.com/p0300

https://www.obd-codes.com/p0300

P0300 OBD II Trouble Code Random Multiple Cylinder Misfire Detected...


Autolite Challenge Series P0300 Engine Misfire Diagnosis

Code P0300 is not a timing code at all , it is a "Random Engine Misfire" code. Timing is computer controlled and no adjustment is required or provided for by the way. Follow the link for more info on the fault code P0300
https://www.obd-codes.com/p0300

P0300: Random Cylinder Misfire Condition
http://www.autocodes.com/p0300_toyota.html

P0301: Cylinder 1 Misfire Detected
http://www.autocodes.com/p0301_toyota.html

P0304: Cylinder 4 Misfire Detected
http://www.autocodes.com/p0304_volkswagen.html

Hi Ron,here's a link about your code P0300. P0300 OBD II Trouble Code

Codes p0300 random misfire, p0302-0304 misfire cylinder 2-4. P0133 o2 circuit slow response bank 1 sensor 1. P1176, P1300, P1580, P1543, B0423 r make specific which you didn't say this would cause the problems you are having.

P0401 is EGR problem
P0300 is a cylinder 3 misfire.
Replace EGR valve and do a full tune-up.

P0300 - Random/Multiple Cylinder Misfire

http://engine-codes.com/p0300.html

Could be coil pack(s), fuel injectors, etc. Rather than retype it, just check out this great article on P0300 random misfire - http://www.obd-codes.com/p0300