4 runner wont stay running

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carriedi
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Joined: Wed Apr 10, 2013 12:42 pm

Re: 4 runner wont stay running

Unread post by carriedi » Mon Dec 01, 2014 2:13 am

first thing you should check then would be your main EFI relay. it should have four wires that go to it. Black and green goes to the fuse and when it's turned on the white with red should send the power from that fuse to the diagnostic connector that is marked B+ (pin #12)

check it with a dvom. Hook the meter up to battery ground and the pin #12. watch to see what the meter reads when you turn the key on and then what it does after the engine starts. See it the power turns off and then the engine dies or does the engine die and the power on the pin stay powered up.

that will check your EFI relay.
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