4-42 FI SYSTEM DIAGNOSIS
“C32” or “C33” FUEL INJECTOR CIRCUIT MALFUNCTION
INSPECTION
Step 1
1) Remove the air cleaner box. ("5-15)
2) Turn the ignition switch OFF.
3) Check the injector couplers for loose or poor contacts.
If OK, then measure the injector resistance.
4) Disconnect the injector couplers and measure the resistance
between terminals.
% Injector resistance: 11 – 13 Ω at 20 °C (68 °F)
(No.1:
1 –
2)
(No.2:
3 –
4)
5) If OK, then check the continuity between injector terminals
and ground.
% Injector continuity: ∞ Ω (Infinity)
(No.1:
1 – Ground)
(No.2:
3 – Ground)
! 09900-25008: Multi circuit tester set
&Tester knob indication: Resistance (Ω)
Is the resistance OK?
DETECTED CONDITION POSSIBLE CAUSE
Fuel injector voltage is 1.3 V and less. • Injector circuit open or short.
• Injector malfunction.
• ECM malfunction.
1
1
1
YES Go to Step 2
NO Replace the Injector with a new one. ("5-18)
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