Toyota 2GR-FE, Manual

Page: 209 / 1021

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES–53
ES
KNOCK FB VAL Feedback value of knocking -
ACCEL POS #1
Absolute Accelerator Pedal Position (APP)
No. 1
-
ACCEL POS #2 Absolute APP No. 2 -
THROTTLE POS Throttle position
Read value with ignition switch on (IG) (Do
not start engine)
THROTTLE POS Throttle sensor positioning
Read value with ignition switch on (IG) (Do
not start engine)
THROTTLE POS #2 Throttle sensor positioning #2 -
THROTTLE MOT Throttle motor -
O2S B1 S2 Heated oxygen sensor output
Performing INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
O2S B2 S2 Heated oxygen sensor output
Performing INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
AFS B1 S1 A/F sensor output
Performing INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
AFS B2 S1 A/F sensor output
Performing INJ VOL or A/F CONTROL
function of ACTIVE TEST enables technician
to check output voltage of sensor
TOTAL FT #1 Total fuel trim -
TOTAL FT #2 Total fuel trim -
SHORT FT #1 Short-term fuel trim
Short-term fuel compensation used to
maintain air-fuel ratio at stoichiometric air-fuel
ratio
LONG FT #1 Long-term fuel trim
Overall fuel compensation carried out in long-
term to compensate for a continual deviation
of short-term fuel trim from central valve
SHORT FT #2 Short-term fuel trim
Short-term fuel compensation used to
maintain air-fuel ratio at stoichiometric air-fuel
ratio
LONG FT #2 Long-term fuel trim
Overall fuel compensation carried out in long-
term to compensate for a continual deviation
of short-term fuel trim from central valve
FUEL SYS #1 Fuel system status (Bank 1)
• 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
FUEL SYS #2 Fuel system status (Bank 2)
• 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
O2FT B1 S2 Fuel trim at heated oxygen sensor Same as SHORT FT #1
O2FT B2 S2 Fuel trim at heated oxygen sensor Same as SHORT FT #1
LABEL
(Intelligent Tester Display)
Measurement Item/Range Diagnostic Note