What does this code mean?
P0300 indicates random or multiple-cylinder misfire. P0301–P0308 identify the numbered cylinder. Ignition, fuel delivery, compression, air leaks or mechanical timing can cause misfire. Use misfire counters, freeze-frame data and appropriate tests to narrow the cause. A flashing malfunction light can signal a misfire that may damage the catalyst.
Sources and interpretation [1]
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P0300MULTI CYL MISFIREManufacturer communications
4Original wording in English
NISSAN
Reported code forms P0300
MIL IS ON WITH DTC P0300 STORED IN THE ECM IF YOU CONFIRM The MIL is ON with DTC P0300 for “MULTI CYL MISFIRE” stored in the ECM. ACTION Refer to the SERVICE PROCEDURE in this bulletin to: 1. Determine applicable model…
NISSAN
Reported code forms P0300
MISFIRE DTCS STORED IN THE ECM DURING COLD START IF YOU CONFIRM Any single or combination of the following DTCs are present in the ECM during a cold start warm-up cycle on an APPLIED VEHICLE: ï‚· P0300 (MULTI CYL…
NISSAN
Reported code forms P0300
SUBJECT REGARDING FUEL INJECTOR CLEANING FOR VEHICLES WITH ROUGH IDLE, HESITATION OR MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0300 - P0306 STORED. *TT
NISSAN
Reported code forms P0300
INFORMATION ON FUEL INJECTOR CLEANING FOR VEHICLES WITH ROUGH IDLE, HESITATION OR MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0300-P0306 STORED. *SB
Check vehicle applicability
6A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Nissan | PATHFINDER | 2023 |
| Nissan | PATHFINDER | 2022 |
| Nissan | PATHFINDER | 2000 |
| Nissan | PATHFINDER | 1999 |
| Nissan | PATHFINDER | 1998 |
| Nissan | PATHFINDER | 1997 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Sources and interpretation
These explanations are editorial summaries of the linked manufacturer material. PDF page numbers count from the first file page. Original publications are in English; translations are reference aids. A cited edition is not a claim that it is the manufacturer's latest instruction.
- 01 13 14 / 2033805 · Engine, Misfire Diagnostic Aid ↗
Volkswagen Group of America · PDF page(s) 1, 2 ·
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF page(s) 9, 10 ·
Source check date · 2026-10-27
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.