NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOO
NVH Troubleshooting Chart
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.

×: Applicable
Preparation
Periodic maintenanceOil pan and oil strainer
Exploded View
Oil pan, upper
Oil filter
Front cover
O-ring
Oil strainer
Oil pan, lower
Washer
Drain plug
O-ring
Oil level gauge guide
Oil level gauge
Rear cover plate
To Oil pan, lower
Removal and In ...
Diagnosis and repair work flow
Work Flow
NOTE:
“DTC” includes DTC at the 1st trip.
1.OBTAIN INFORMATION ABOUT SYMPTOM
Refer to TM-80, "Diagnostic Work Sheet" and interview the customer to obtain
the malfunction information
(conditions and environment when the malfunction occurred) as much as possible
when t ...
P0171 fuel injection system function
DTC Description
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture
ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from the
A/F sensors 1. The ECM calculates
the necessary compensation to corr ...