Toyota Celica 2005, Repair Manual

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+25 %
− 12.5%
More than 0.55 V
Less than 0.4 V
A
B
C
D
Heated oxygen sensor
(Bank 1 Sensor 1)
Injection volume
Output voltage
Heated oxygen sensor
(Bank 1 Sensor 2)
Suspected Trouble Area
+25 %
− 12.5%
More than 0.55 V
Less than 0.4 V
Injection volume
Output voltage
+25 %
− 12.5%
More than 0.5 V
Less than 0.4 V
Injection volume
Output voltage
+25 %
− 12.5%
More than 0.5 V
Less than 0.4 V
Injection volume
Output voltage
+25 %
− 12.5%
Injection volume
Output voltage
+25 %
− 12.5%
Injection volume
Output voltage
+25 %
− 12.5%
Injection volume
Output voltage
+25 %
− 12.5%
Injection volume
Output voltage
Extremely rich or lean fuel − trim,
etc.
Almost no reaction
Almost no reaction
Almost no reaction Almost no reaction
Catalysts
Go to
Heated oxygen sensor
(Bank 1 Sensor 1)
Heated oxygen sensor
(Bank 1 Sensor 2)
DI − 498
− DIAGNOSTICS ENGINE (2ZZ − GE)
2005 CELICA (RM1131U)
3 Perform A/F CONTROL active test.
(a) Connect the hand − held tester to the DLC3.
(b) Run the engine at 2500 rpm for 90 seconds.
(c) Allow the engine to idle.
(d) Select from the tester menus: DIAGNOSIS / ENHANCED OBDII / ACTIVE TEST / A/F CONTROL.
(e) Switch the injection volume b25% and − 12.5%, and then check the oxygen sensor voltages.
Result
NOTICE:
The front heated oxygen sensor has an output delay of a few seconds.
The rear heated oxygen sensor has a maximum output delay of approximately 20 seconds.
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