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
Faulty CMP sensing rotor or CKP sensing rotor
Faulty idle air control system
Faulty ECT sensor, TP sensor, CKP sensor, CMP sensor or MAP sensor
Fuel pressure out of specification
Faulty fuel injector
Faulty ECM
Malfunctioning PCV system
Low compression
Improper valve lash
Improper valve timing
Compression leak from valve seat
Sticky valve stem
Weak or damaged valve springs
Compression leak at cylinder head gasket
Sticking or damaged piston ring
Worn piston, ring or cylinder