Toyota 2VZ-FE Manual page 161

CONTINUED FROM PAGE
EFI SYSTEM
FI–54
Disconnect the PCV hose.
Measure voltage between terminals VF1 and E1.
0 V
Replace the oxygen sensor.
– Electronic Control System (Oxygen Sensor (Main))
Repair the relevant diagnostic code.
Malfunction code(s)
(Ex. code Nos. 21, 25 and 26)
Rear record diagnostic codes. (See page
Normal code, code Nos.
21, 25 and 26
Disconnect terminals TE1 and E1 of the check connector.
And maintain engine at 2,500 rpm.
Measure voltage between terminals VF1 and E1.
0 V
More than 0 V
Repair (Over rich)
Disconnect the water temp. sensor connector and
connect resistor with a resistance of 4 – 8
another coded water temp. sensor.
Connect terminals TE1 and E1 of the check connector.
Warm up the oxygen sensor with the engine at 2,500
rpm for approx. 90 seconds. And maintain engine
speed at 2,500 rpm.
Measure voltage between terminals VF1 and E1.
0 V
FI–55
TR–9 or TR–10)
5 V
or
5 V
Repair (Over lean)