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Old June 20th, 2015, 11:42 AM   #1
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Throttle body cleaner

Quick concern. I took off my old intake to replace it with a new short ram. And then figured I should clean the throttle body with some throttle body cleaner. But would this cause an issue as our cars are drive by wire? Would this cause rev hang or any other issues or am I clear to spray the throttle body clean?
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Old June 20th, 2015, 05:45 PM   #2
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Just a lil piece of advise when you do clean the inside of the TB. Be sure not to spray directly into the throat, especially at the butterfly pivot points, because you risk the chance of damaging the internals of the TB control module. Just spray on a rag and wipe. I used the toothbrush method and ended up buying another TB.
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Old June 20th, 2015, 06:14 PM   #3
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Fly what in the hell did you do? The only electronically active component in the tb is the motor, and the map sensor. The motor is 3" away and the map honestly probably doesn't love carb cleaner, but i don't see it destroying it.

As a side note, still have that old broken tb around?
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Old June 20th, 2015, 06:20 PM   #4
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Originally Posted by oraclem19 View Post
Fly what in the hell did you do? The only electronically active component in the tb is the motor, and the map sensor. The motor is 3" away and the map honestly probably doesn't love carb cleaner, but i don't see it destroying it.

As a side note, still have that old broken tb around?
The throttle position sensor (apart of the module also) was malfunctioning and threw a eng code. I forget which one but I ended up replacing the TB because of it.
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Old July 2nd, 2015, 10:38 PM   #5
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It is best to have someone move the throttle plate via the gas pedal while you clean it. If you move it manually you can really mess it up. Huge problem on the VQ35 Maximas, so many people ruined their TB's manually opening the plate.
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Old July 2nd, 2015, 11:04 PM   #6
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Originally Posted by Scottwax View Post
It is best to have someone move the throttle plate via the gas pedal while you clean it. If you move it manually you can really mess it up. Huge problem on the VQ35 Maximas, so many people ruined their TB's manually opening the plate.
That's exactly what I had done when I was cleaning it. I manually held the valve completely open and must of put to much thumb pressure on it... Since we are talking about DBW system, how can we electronically actuate the TB plate without running the engine? I guess there's a way with HDS?
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Old July 2nd, 2015, 11:09 PM   #7
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It is best to have someone move the throttle plate via the gas pedal while you clean it. If you move it manually you can really mess it up. Huge problem on the VQ35 Maximas, so many people ruined their TB's manually opening the plate.
What exactly gets damaged doing this? I can understand if you're trying to manually close it, or open it too quickly and damage the motor.
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Old July 3rd, 2015, 08:19 AM   #8
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Quote:
Originally Posted by flylow2cre8 View Post
That's exactly what I had done when I was cleaning it. I manually held the valve completely open and must of put to much thumb pressure on it... Since we are talking about DBW system, how can we electronically actuate the TB plate without running the engine? I guess there's a way with HDS?
Most people either have someone work the gas pedal with the key in the run position (but car not started) or with a stick between the seat and pedal to hold it open.

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Originally Posted by oraclem19 View Post
What exactly gets damaged doing this? I can understand if you're trying to manually close it, or open it too quickly and damage the motor.
The Maxima TB has gears that open and close it, that's what gets stripped and then your idle gets all messed up.
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