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01 Highlander will start, but then dies. The engine will…

Customer Question
01 Highlander will start...

01 Highlander will start, but then dies. The engine will keep running if you hold the throttle. This problem started suddenly today.

Mechanic's Assistant: Will the headlights turn on? Is the battery fully charged?

Battery is 12.7 v, lights look fine

Mechanic's Assistant: Are you fixing your Highlander yourself? What have you tried so far?

Attempting the fix myself. I cleaned the MFA sensor. Don’t know if it should be replaced.

Submitted: 4 months ago.Category: Toyota
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Answered in 1 minute by:
3/18/2018
Toyota Mechanic: david craig, Auto Mechanic replied 4 months ago
david craig
david craig, Auto Mechanic
Category: Toyota
Satisfied Customers: 5,780
Experience: owner/mechanic at 3D Automotive
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Hi my name is ***** ***** I'll be more than happy to assist you. Please allow me a few minutes to review your information. Thank you

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Toyota Mechanic: david craig, Auto Mechanic replied 4 months ago

unplug the maf sensor and try to start it

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Customer reply replied 4 months ago
It started, and died. But again, I was able to keep it running by featuring the throttle. Of course, the cel came on.
Customer reply replied 4 months ago
feathering the throttle
Toyota Mechanic: david craig, Auto Mechanic replied 4 months ago

ok you can plug it back in. do you have a voltmeter?

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Customer reply replied 4 months ago
I have a volt meter
Toyota Mechanic: david craig, Auto Mechanic replied 4 months ago

pull the connector off the maf, check for voltage and ground, then plug it back in and check for signal voltage

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Toyota Mechanic: david craig, Auto Mechanic replied 4 months ago

4 or 6 cylinder

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Customer reply replied 4 months ago
5 wires, which pair is signal?
Customer reply replied 4 months ago
6 cylinder
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