Engine

Cylinder(s) and cylinder head(s)

• Incorrect valve clearance

• Damaged valve train components Air filter

• Clogged air filter element

FUEL SYSTEM Throttle body(-ies)

• Damaged or loose throttle body joint

• Improperly synchronized throttle bodies

• Improperly adjusted engine idling speed (throttle stop screw)

• Improper throttle cable free play

• Flooded throttle body

• Faulty air induction system

ELECTRICAL SYSTEMS Battery

• Discharged battery

• Faulty battery Spark plug(s)

• Incorrect spark plug gap

• Incorrect spark plug heat range

• Fouled spark plug

• Worn or damaged electrode

• Worn or damaged insulator

• Faulty spark plug cap Ignition coil(s)

• Broken or shorted primary or secondary coils

• Faulty spark plug lead

• Cracked or broken ignition coil

Ignition system

• Faulty crankshaft position sensor eas00849

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