Engine control module

1994 TOYOTA LANDCRUISER

250,000 MILES • 4.5L • 6 CYL • 4WD • AUTOMATIC

JAMES C ADCOCK

MEMBER
2 POSTS

Engine has no spark and no check engine light. I sent engine control module to place in Florida and they sent it back after claiming to have made repairs but seems like they did nothing but put stickers on it that voids warranty if removed.
I was led to believe it would be plug in and go by salesperson at company.

May 8, 2018 at 2:43 AM

STRAILER

✓Experienced Mechanic
55,694 POSTS

Hello,

Yes it should be but if the computer has no power or ground it will never work. I would check the circuit open and EFI relay.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

and

https://www.2carpros.com/articles/how-to-check-wiring

Here is the location of the relay and the engine wiring diagrams to help you run down the power and ground. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken

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