Diagnostic Trouble Code (DTC) Information

Condition 

The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects misfiring during the first 1000 engine revolutions. The diagnostic trouble code (DTC) indicates which cylinder is misfiring. The diagnostic trouble code (DTC) can be diagnosed when the engine is running.

• ECM-3210: cylinder 1.
• ECM-3220: cylinder 2.
• ECM-3230: cylinder 3.
• ECM-3240: cylinder 4.
• ECM-3250: cylinder 5.
• ECM-3260: cylinder 6.

Substitute Value 

• Rear heated oxygen sensor control shut off
• Fuel trim switched off.

Possible Source 

• Low fuel level
• The engine does not reach normal operating temperature between several cold starts
• Water in the spark plug wells
• Damaged spark plug
• Contaminated or incorrect fuel
• Poor fuel quality (summer fuel in winter).
• Air leakage
• Blocked crankcase ventilation.
• Damaged VVT-unit.
• Blocked / leaking injector
• Faulty fuel pressure
• Uneven compression

Fault symptom[s] 

• Malfunction indicator lamp (MIL) lit
• The engine misfires
• The engine is difficult to start
• Deterioration in performance
• Uneven idle
• The engine is not firing on all cylinders.