Toyota 2GR-FE, Manual

Page: 202 / 1021

ES–46
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
(d) WAVEFORM 4
(1) Knock sensor signal
HINT:
•
The wavelength becomes shorter as the
engine rpm increases.
• The waveforms and amplitudes displayed
differ slightly depending on the vehicle.
(e) WAVEFORM 5
(1) Variable Valve Timing (VVT) sensor signal (1)
(2) Crankshaft position sensor signal (2)
HINT:
The wavelength becomes shorter as the engine
rpm increases.
(f) WAVEFORM 6
(1) Igniter IGT signal (from ECM to igniter) (1)
(2) Igniter IGF signal (from igniter to ECM) (2)
HINT:
The wavelength becomes shorter as the engine
rpm increases.
(g) WAVEFORM 7
(1) Purge VSV for EVAP system operation signal
HINT:
If the waveform is not similar to that shown in the
illustration, check the waveform again after idling
for 10 minutes or more.
Ground
1 V/DIV
1 ms./DIV
A085286E41
ECM Terminal Names Between KNK1 and EKNK, or KNK2 and EKN2
Tester Ranges 0.01 to 10 V/DIV, 0.01 to 10 ms./DIV
Conditions
Engine speed is maintained at 4,000 rpm after engine
is warmed up
GND
5 V/DIV
(2) NE
(1) VV1
or EV1
VV2 or
EV2
GND
20 ms./DIV (Idling)
GND
G035795E23
ECM Terminal Names
(1) Between VV1+ and VV1- , VV2+ and VV2-, EV1+
and EV1-, or EV2+ and EV2-
(2) Between NE+ and NE-
Tester Ranges 5 V/DIV, 20 ms./DIV
Conditions Idling
(1)
(2)
2 V/DIV
Ground
Ground
20 ms./DIV
G035664E08
ECM Terminal Names
(1) Between IGT (1 to 6) and E1
(2) Between IGF1 and E1
Tester Ranges 2 V/DIV, 20 ms./DIV
Conditions Idling
Ground
10 V/DIV
50 ms./DIV
G042964E02
ECM Terminal Names Between PRG and E1
Tester Ranges 10 V/DIV, 50 ms./DIV
Conditions Idling