HReconnect the AF sensor connector

Reference (Bank 1 Sensor 1 System Diagram)

A/F Sensor Heater Relay

A/F Heater Fuse

From Battery From EFI Relay

EFI No.2 Fuse

A/F Sensor

HA1A

A1A+

Tjuttl

Duty

A1A-

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK AIR INDUCTION SYSTEM

(a) Check the air induction system for vacuum leakage. OK:

No leakage from air induction system.

REPAIR OR REPLACE AIR INDUCTION SYSTEM

CHECK FUEL PRESSURE

(a) Check the fuel pressure.

REPAIR OR REPLACE FUEL SYSTEM

INSPECT FUEL INJECTOR ASSEMBLY

(a) Check the injector injection (whether fuel volume is high or low, and whether injection pattern is poor).

REPLACE FUEL INJECTOR ASSEMBLY

REPLACE AIR FUEL RATIO SENSOR

l^nextj

PERFORM CONFIRMATION DRIVING PATTERN

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

Get My Free Ebook


Post a comment