Page text (OCR transcript)
EG-543
ENGINE — 2JZ-GTE ENGINE TROUBLESHOOTING
2 Check sub heated oxyten sensor heater.
P Disconnect sub heated oxygen sensor connector.
(See page EG-321)
C Measure resistance between terminals 1 and 2 of
sub heated oxygen sensor connector.
OK Resistance: 11 — 16 at 20°C (68°F)
P11483
OK
NG Replace sub heated oxygen sensor.
3 Check for open and short in harness and connector between EFI main
replay and engine control module (See page IN-30).
OK
NG Repair or replace harness or connector.
Check and replace engine control module.
4 Check voltage between terminal HT2 of engine control module connector
and body ground.
SST
ECM
B 72
HT2
FI6948
P Warm up engine to normal operating temperature.
C Measure voltage between terminal HT2 of engine
control module connector and body ground, when
engine is idling and racing at 3,500 rpm.
OK
Voltage
Idling 0 V
Racing at 3,500 rpm 9 — 14 V
NG
OK Replace sub heated oxygen sensor.*
*: It is probable the oxygen sensor has dete-
riorated.
Usually, this cannot be confirmed by visual
inspection.
Check and replace engine control module.