Injector; Check Injector Operation; Measure Resistance Of Injector - Toyota MR2 1988 Repair Manual

Fl-80
INJECTION
EFI SYSTEM - Fuel System
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Sound Scope
'
'
Fl2667
Fl2608
Ohmmeter
Fl2965
Injector
Coil
Fl1664
ON-VEHICLE INSPECTION
1. CHECK INJECTOR OPERATION
Check the operating sound from each injector.
(a) With the engine running or cranking, use a sound
scope to check that there is normal operating noise in
proportion to engine rpm.
(b) If you have no sound scope, you can check the injec-
tor transmission operation with your finger.
If no sound or an unusual sound is heard, check the wiring
connector, injector, resistor or injection signal from the
computer.
2. MEASURE RESISTANCE OF INJECTOR
(a) Disconnect the injector connector.
(b) Using an ohmmeter, check the resistance of both ter-
minals.
Resistance: 4A-GE
4A-GZE
Approx. 13.8
0
Approx. 2.9 fi