I recently sent them for testing and cleaned.but the vehicle still have the same issue.what might be the problem?
Jul 24, 2021 at 11:15 PM
Two injectors not firing on my 4afe
1993 TOYOTA COROLLA
SIYABULELA NTSOKO
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Good morning,
The ECM controls the injectors. The ECM controls 2 at a time. You should have power with the key on to the injectors on 1 terminal. The other terminal goes to the ECM for grounding. When it grounds the injector, it opens up and passes fuel.
https://www.2carpros.com/articles/how-to-test-a-fuel-injector
I attached a wiring diagram for you to view. If there is the power to the injector then it is a good chance the ECM is the issue.
https://www.2carpros.com/articles/how-to-use-a-voltmeter
Roy
The ECM controls the injectors. The ECM controls 2 at a time. You should have power with the key on to the injectors on 1 terminal. The other terminal goes to the ECM for grounding. When it grounds the injector, it opens up and passes fuel.
https://www.2carpros.com/articles/how-to-test-a-fuel-injector
I attached a wiring diagram for you to view. If there is the power to the injector then it is a good chance the ECM is the issue.
https://www.2carpros.com/articles/how-to-use-a-voltmeter
Roy
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Jul 25, 2021 at 9:11 AM
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