1A
Engine hesitates (Momentary lack of response as the accelerator is depressed. Can occur at all vehicle speeds. Usually most severe when first trying to make the vehicle move, as from a stop sign.)
Perform troubleshooting referring to the followings when ECM has detected no DTC and no abnormality has been found in Visual Inspection:M13A with VVT and Engine Basic Inspection:M13A with VVT .
Condition Possible Cause Action
Engine hesitates (Momentary lack of response as the accelerator is depressed. Can occur at all vehicle speeds. Usually most severe when first trying to make the vehicle move, as from a stop sign.)
Spark plug faulty or plug gap out of adjustment
Leaky high-tension cord
Fuel pressure out of specification
Malfunctioning EGR valve
Poor performance of TP sensor, ECT sensor or MAF sensor
Faulty fuel injector
Faulty ECM
Engine overheating
“Overheating” under Engine Symptom Diagnosis:M13A with VVT
Low compression
“Low Compression” under Engine Symptom Diagnosis:M13A with VVT
Camshaft position control (VVT) system out order