Honda Fit/Jazz - DTC Troubleshooting: P0300 (71-1), P0300 (72-1), P0300 (73-1), P0300 (74-1) (5MT)
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DTC Troubleshooting: P0300 (71-1), P0300 (72-1), P0300 (73-1), P0300 (74-1)
| DTC P0300 (7x-1): | Random misfire and any Combination of the Following: |
| DTC P0301 (71-1): | No. 1 Cylinder Misfire |
| DTC P0302 (72-1): | No. 2 Cylinder Misfire |
| DTC P0303 (73-1): | No. 3 Cylinder Misfire |
| DTC P0304 (74-1): | No. 4 Cylinder Misfire |
NOTE:
- If the misfiring is frequent enough to trigger detection of increased emissions during two consecutive driving cycles, the MIL will come on, and DTC P0300 (and some combination of P0301 through P0304) will be stored.
- If the misfiring is frequent enough to damage the catalyst, the MIL will blink whenever the misfiring occurs, and DTC P0300 (and some combination of P0301 through P0304) will be stored. When the misfiring stops, the MIL will remain on.
| 1. | Troubleshoot the following DTCs first if any of them were stored along with the random misfire DTC(s): P0107, P0108: Manifold Absolute Pressure (MAP) sensor P0131, P0132: Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) P0171, P0172: Fuel system P0335, P0336: Crankshaft Position (CKP) sensor P1361, P1362: Top Dead Center (TDC) sensor P1519: Idle Air Control (IAC) valve |
| 2. | Test-drive the vehicle to verify the symptom. |
| 3. | Find the symptom in the chart below, and do the related procedures in the order listed until you find the cause. |
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