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
Front heated oxygen sensor
(sensor 1)
Injection volume
Output voltage
Rear heated oxygen sensor
(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
Exhaust gas leak, etc.
Almost no reaction
Almost no reaction
Almost no reaction Almost no reaction
Catalysts
Go to
Front heated oxygen sensor
(sensor 1)
Rear heated oxygen sensor
(sensor 2)
− DIAGNOSTICS ENGINE (1ZZ − FE)
DI − 199
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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