1A
Hard starting (Engine cranks OK)
Perform troubleshooting referring to the followings when ECM has detected no DTC and no abnormality has been found in Visual Inspection:M13A without VVT and Engine Basic Inspection:M13A without VVT .
Condition Possible Cause Action
Hard starting (Engine cranks OK)
Faulty ignition coil
Ignition Coil Assembly (Including ignitor) Inspection:M13A
Faulty CMP sensing rotor or CKP sensing rotor
Camshaft Position (CMP) Sensor Inspection:M13A or Crankshaft Position (CKP) Sensor Inspection:M13A
Faulty idle air control system
Idle Air Control System Check:M13A without VVT
Faulty ECT sensor, TP sensor, CKP sensor, CMP sensor or MAP sensor
Engine Coolant Temperature (ECT) Sensor Inspection:M13A , Throttle Position (TP) Sensor On-Vehicle Inspection:M13A , Crankshaft Position (CKP) Sensor Inspection:M13A , Camshaft Position (CMP) Sensor Inspection:M13A or Manifold Absolute Pressure (MAP) Sensor Inspection:M13A
Fuel pressure out of specification
Fuel Pressure Check:M13A without VVT
Faulty fuel injector
Fuel Injector Circuit Check:M13A without VVT
Faulty ECM
Inspection of ECM and Its Circuits:M13A without VVT
Malfunctioning PCV system
PCV Valve Inspection:M13A
Low compression
Compression Check:M13A
Improper valve lash
Valve Lash (Clearance) Inspection:M13A
Improper valve timing
Timing Chain and Chain Tensioner Inspection:M13A
Compression leak from valve seat
Valves and Valve Guides Inspection:M13A
Sticky valve stem
Valves and Valve Guides Inspection:M13A
Weak or damaged valve springs
Valve Spring Inspection:M13A
Compression leak at cylinder head gasket
Cylinder Head Inspection:M13A
Sticking or damaged piston ring
Cylinders, Pistons and Piston Rings Inspection:M13A
Worn piston, ring or cylinder
Cylinders, Pistons and Piston Rings Inspection:M13A