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Home >> Volvo >> 2002 >> V40 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 2 Of 3 >> ECM-44: Misfire, Emission Level. Faulty Signal. Intermittent Fault (B4204T3 (Ca) (Us); 2001-2003) >> Faulty signal. Intermittent fault >> Checking the fuel injection system, ignition system and components

Checking the fuel injection system, ignition system and components

Check that the engine oil level is correct.

Check the ignition system for moisture in the spark plug wells. Check the ignition cables for open-circuits.

Check the spark plugs. Search for damage in the insulation and other damage. If there is any doubt about their function, replace the spark plugs.

Check the ignition coil connectors and the ground cable. Check for contact resistance and oxidation according to Contact resistance and oxidation .

Check the engine compression according to Checking the engine: .

Check the injectors according to Checking the injectors .

Check the fuel pressure and residual pressure according to Measuring fuel pressure EMS 2000 .

Check the intake system for air leakage according to intake system/leak test .