4runner misfire p0306

This topic has 1 reply, 2 voices, and was last updated 4 years, 2 months ago by Naughty Nate.

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May 27, 2020 at 4:37 pm #201663
AlexG
Participant
Hello!

I am having the exact same problems as in the video:

2004 Toyota 4Runner P0306 Misfire Diagnosis

Except it is on cylinder 4.

I don’t have a compression tester but I would like to pull plug #4, disable fuel and ignition, crank, and watch for water vapor to exit the spark plug hole.

My question: How did you disable the fuel injectors without removing the intake?!?! I thought pulling the relay would not allow cranking. Did you just disconnect the spark plug plugs to disable ignition?

Please help!

Thank you!
September 24, 2020 at 3:55 am #262074
Naughty Nate
Participant
Pretty late response, but you could disable fuel by pulling the fuel pump relay and letting the vehicle idle until it sputters out of gas. When you are ready to start it again, turn key forward and wait 3-4 seconds, turn off, turn forward and wait 3-4 seconds and then it should start right up.
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