Toyota 2GR-FE Manual page 209

LABEL
(Intelligent Tester Display)
KNOCK FB VAL
ACCEL POS #1
ACCEL POS #2
THROTTLE POS
THROTTLE POS
THROTTLE POS #2
THROTTLE MOT
O2S B1 S2
O2S B2 S2
AFS B1 S1
AFS B2 S1
TOTAL FT #1
TOTAL FT #2
SHORT FT #1
LONG FT #1
SHORT FT #2
LONG FT #2
FUEL SYS #1
FUEL SYS #2
O2FT B1 S2
O2FT B2 S2
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Measurement Item/Range
Feedback value of knocking
Absolute Accelerator Pedal Position (APP)
No. 1
Absolute APP No. 2
Throttle position
Throttle sensor positioning
Throttle sensor positioning #2
Throttle motor
Heated oxygen sensor output
Heated oxygen sensor output
A/F sensor output
A/F sensor output
Total fuel trim
Total fuel trim
Short-term fuel trim
Long-term fuel trim
Short-term fuel trim
Long-term fuel trim
Fuel system status (Bank 1)
Fuel system status (Bank 2)
Fuel trim at heated oxygen sensor
Fuel trim at heated oxygen sensor
Diagnostic Note
-
-
-
Read value with ignition switch on (IG) (Do
not start engine)
Read value with ignition switch on (IG) (Do
not start engine)
-
-
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
Overall fuel compensation carried out in long-
term to compensate for a continual deviation
of short-term fuel trim from central valve
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 a continual deviation
of short-term fuel trim from central valve
• OL (Open Loop): Has not yet satisfied
conditions to go closed loop
• CL (Closed Loop): Using heated oxygen
sensor as feedback for fuel control
• OL DRIVE: Open loop due to driving
conditions (fuel enrichment)
• OL FAULT: Open loop due to detected
system fault
• CL FAULT: Closed loop but heated
oxygen sensor, which used for fuel control
malfunctioning
• OL (Open Loop): Has not yet satisfied
conditions to go closed loop
• CL (Closed Loop): Using heated oxygen
sensor as feedback for fuel control
• OL DRIVE: Open loop due to driving
conditions (fuel enrichment)
• OL FAULT: Open loop due to detected
system fault
• CL FAULT: Closed loop but heated
oxygen sensor, which used for fuel control
malfunctioning
Same as SHORT FT #1
Same as SHORT FT #1
ES–53
ES