MR2 L4-132 2164cc 2.2L DOHC (5S-FE) (1993)
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Fuel Injector: Testing and Inspection
On-Vehicle
ON-VEHICLE INSPECTION:
1. INSPECT INJECTOR OPERATION.
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Check operation sound from each injector.
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With the engine running or cranking, use a sound scope to check that there is a normal operating noise in proportion to engine speed.
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If you have no sound scope, you can check the injector transmission operation with your finger.
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If no sound or unusual sound is heard, check the wiring connector, injector or injection signal from the ECM.
2. INSPECT INJECTOR RESISTANCE.
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Disconnect the injector connector.
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Using an ohmmeter, measure the resistance between the terminals.
Resistance At 20°C (65°F): 13.4 - 14.2 Ohms
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If the resistance is not as specified, replace the injector.
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Reconnect the injector connector.