Fuel Injector Line, cylinder one not working?

2006 TOYOTA COROLLA
210,000 MILES • 1.5L • 4 CYL • 2WD • AUTOMATIC
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FRANKYE972
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Cylinder 1 is not working. I tested it with a test light and the signal light only blinks at start up. Once the engine is running the line just shuts off.
May 25, 2023 at 11:16 PM
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BORIS K
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Hello,

It sounds like a possible intentional injector shut down by the engine management system.
This is done when the system detects a misfire on that cylinder and shuts down the injector to prevent over fueling and possible resulting catalytic converter damage.

A good video regarding injector shut down:
https://youtu.be/v9csp3-4VSs
and
https://youtu.be/3plr-FsLwCk

I would suggest to next carry out a CAN-scan using a suitable diagnostic tool

How to:
https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Have you checked the ignition system, coils and spark plugs?

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Cheers, Boris
May 26, 2023 at 1:20 AM