Toyota 22R-E Service Manual page 467

EG2–190
No.
Terminals
ENGINE
Trouble
Ignition
SW ON
No voltage
IG SW ON
VC – E2 (E21)
(1) There is no voltage between ECM terminals VC and E2 (E21).
(I G SW ON)
(2) Check that there is voltage between ECM terminal + B (+ 131) and
body ground. (IG SW ON)
(3) Check volume air flow meter.
BAD
Replace or repair volume
air flow meter.
– MFI SYSTEM
Condition
Measuring plate fully dosed
Measuring plate fully open
Idling
Intake air temperature 20 C (68 F
Check wiring between ECM and volume
air flow meter.
Try another ECM.
STD Voltage
Refer to No. 1.
BAD
Replace or repair wiring.