COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
Generator
RemovalCatalyst System Efficiency Below Threshold (Bank 1) (P0420)
MONITOR DESCRIPTION
The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter
(TWC) to monitor its efficiency.
The first sensor, the air fuel ratio sensor, sends pre-catalyst information to
the ECM. The second sensor, the heat ...
Removal
REMOVAL
PROCEDURE
1. REMOVE NO. 1 ENGINE UNDER COVER
2. REMOVE NO. 2 ENGINE UNDER COVER
3. DRAIN ENGINE COOLANT
4. REMOVE COOL AIR INTAKE DUCT SEAL
5. REMOVE INLET AIR CLEANER ASSEMBLY
6. REMOVE RADIATOR GRILLE
7. REMOVE LOW PITCHED HORN AS ...
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
Use the table below to help determine the cause of problem symptoms. If multiple
suspected areas are listed, the potential causes of the symptoms are listed in order
of probability in the "Suspected Area" column of the tab ...