What is the correct solution for P0300?
1 Answers
The correct solution for P0300 is as follows: 1. Use a diagnostic tool to read the fault code and confirm that it is a misfire fault causing the MIL light to illuminate. 2. Read the freeze frame information to confirm the operating conditions when the fault occurred. 3. Clear the fault code and operate the vehicle under the conditions determined by the freeze frame to analyze whether it is a genuine misfire or a misjudged misfire. 4. If it is confirmed to be a vehicle misfire, inspect the ignition system. 5. If there is no fault in the ignition system, analyze the air-fuel mixture control system. 6. When checking the wiring harness, ensure that the harness contacts are in good condition. 7. If the above steps still do not resolve the issue, consider whether there are faults in fuel injection, ignition timing, or mechanical load.