Toyota 2GR-FE Manual page 217

Intelligent Tester Display
THROTL OPN DUTY
THROTL CLS DUTY
THRTL MOT (OPN)
THRTL MOT (CLS)
O2S B1 S2
O2S B2 S2
AF FT B1 S1
AF FT B2 S1
AFS B1 S1
AFS B2 S1
TOTAL FT #1
TOTAL FT #2
SHORT FT #1
SHORT FT #2
LONG FT #1
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Measurement Item: Range
(Display)
Throttle actuator opening duty
ratio:
Min.: 0%, Max.: 100%
Throttle actuator closed duty ratio:
Min.: 0%, Max.: 100%
Throttle actuator duty ratio (open):
Min.: 0%, Max.: 100%
Throttle actuator duty ratio
(closed):
Min.: 0%, Max.: 100%
Heated oxygen sensor output
voltage for bank 1 sensor 2:
Min.: 0 V Max.: 1.275 V
Heated oxygen sensor output
voltage for bank 2 sensor 2:
Min.: 0 V Max.: 1.275 V
Short-term fuel trim associated
with sensor 1:
Min.: 0, Max.: 1.999
Short-term fuel trim associated
with sensor 1:
Min.: 0, Max.: 1.999
A/F sensor output voltage for
bank 1 sensor 1:
Min.: 0 V Max.: 7.999 V
A/F sensor output voltage for
bank 2 sensor 1:
Min.: 0 V Max.: 7.999 V
Total fuel trim of bank 1
Average value for fuel system of
bank 1:
Min.: -0.5, Max.: 0.496
Total fuel trim of bank 2
Average value for fuel system of
bank 2:
Min.: -0.5, Max.: 0.496
Short-term fuel trim of bank 1:
Min.: -100%, Max.: 99.2%
Short-term fuel trim of bank 2:
Min.: -100%, Max.: 99.2%
Long-term fuel trim of bank 1:
Min.: -100%, Max.: 99.2%
*1
Normal Condition
0 to 40%: Idling
0 to 40%: Idling
-
-
0.1 to 0.9 V: Driving at 70 km/h
(44 mph)
0.1 to 0.9 V: Driving at 70 km/h
(44 mph)
• Value less than 1 (0.000 to
0.999) =Lean
• Stoichiometric air-fuel
ratio=1
• Value greater than 1 (1.001
to 1.999) = Rich
• Value less than 1 (0.000 to
0.999) =Lean
• Stoichiometric air-fuel
ratio=1
• Value greater than 1 (1.001
to 1.999) = Rich
2.8 to 3.8 V: Idling
2.8 to 3.8 V: Idling
-0.2 to 0.2: Idling
-0.2 to 0.2: Idling
-20 to 20%
-20 to 20%
-20 to 20%
ES–61
Diagnostic Note
• When accelerator pedal is
depressed, duty ratio
increaseds
• Read value with ignition switch
ON (Do not start engine)
• When accelerator pedal is
increaseds quickly, duty ratio
increaseds
• Read value with ignition switch
ON (Do not start engine)
ETCS service data
ETCS service data
Performing INJ VOL or A/F
CONTROL function of ACTIVE
TEST enables technician to check
output voltage of sensor
Performing INJ VOL or A/F
CONTROL function of ACTIVE
TEST enables technician to check
output voltage of sensor
-
-
Performing INJ VOL or A/F
CONTROL function of ACTIVE
TEST enables technician to check
output voltage of sensor
Performing INJ VOL or A/F
CONTROL function of ACTIVE
TEST enables technician to check
output voltage of sensor
-
-
Short-term fuel compensation
used to maintain air-fuel ratio at
stoichiometric air-fuel ratio
Short-term fuel compensation
used to maintain air-fuel ratio at
stoichiometric air-fuel ratio
Overall fuel compensation carried
out in long-term to compensate for
continual deviation of short-term
fuel trim from central value
ES