How to clean IAC Valve and MAF sensor?
05-28-13, 05:32 PM
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How to clean IAC Valve and MAF sensor?
Hey all
would someone be able to give me a heads up on how to clean the IAC valve and MAF sensor properly on a gen 1 ES300?
Thanks
would someone be able to give me a heads up on how to clean the IAC valve and MAF sensor properly on a gen 1 ES300?
Thanks
05-29-13, 04:14 AM
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by first generation es300 I'll assume you are referring to the 1mz application as the 3vz did not utilize a MAF sensor.
As far as the MAF sensor cleaning goes, I believe it is the same as almost every other MAF sensor: unhook it, spray it with the MAF cleaner, let air dry, reattach
IAC valve. Hope this helps some
As far as the MAF sensor cleaning goes, I believe it is the same as almost every other MAF sensor: unhook it, spray it with the MAF cleaner, let air dry, reattach
IAC valve. Hope this helps some
05-29-13, 04:45 AM
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by first generation es300 I'll assume you are referring to the 1mz application as the 3vz did not utilize a MAF sensor.
As far as the MAF sensor cleaning goes, I believe it is the same as almost every other MAF sensor: unhook it, spray it with the MAF cleaner, let air dry, reattach
IAC valve. Hope this helps some Camry Idle Air Control Valve Cleaning - YouTube
As far as the MAF sensor cleaning goes, I believe it is the same as almost every other MAF sensor: unhook it, spray it with the MAF cleaner, let air dry, reattach
IAC valve. Hope this helps some Camry Idle Air Control Valve Cleaning - YouTube
05-29-13, 07:18 AM
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So does mine. As I mentioned before the 3VZ-FE does not use a Mass air flow sensor to meter air it instead uses an air flow meter. it is the silver housing attached to the top of the filter housing. What's really great it you don't need to clean it.
You also do not want to attempt disassembling it. there are two screws on either side of the connection port, if you remove these and pull on this connection you will most likely ruin this part. You can see the inside here. https://www.clublexus.com/forums/es3...ml#post1385991
To clean the Idle air conrol valve you can simply unbolt it and clean it up with some throttle body cleaner. You'll probably want to replace the gasket. Which I believe is part no. 22278‑62030.
You also do not want to attempt disassembling it. there are two screws on either side of the connection port, if you remove these and pull on this connection you will most likely ruin this part. You can see the inside here. https://www.clublexus.com/forums/es3...ml#post1385991
To clean the Idle air conrol valve you can simply unbolt it and clean it up with some throttle body cleaner. You'll probably want to replace the gasket. Which I believe is part no. 22278‑62030.
05-29-13, 07:19 PM
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So does mine. As I mentioned before the 3VZ-FE does not use a Mass air flow sensor to meter air it instead uses an air flow meter. it is the silver housing attached to the top of the filter housing. What's really great it you don't need to clean it.
You also do not want to attempt disassembling it. there are two screws on either side of the connection port, if you remove these and pull on this connection you will most likely ruin this part. You can see the inside here. https://www.clublexus.com/forums/es3...ml#post1385991
To clean the Idle air conrol valve you can simply unbolt it and clean it up with some throttle body cleaner. You'll probably want to replace the gasket. Which I believe is part no. 22278‑62030.
You also do not want to attempt disassembling it. there are two screws on either side of the connection port, if you remove these and pull on this connection you will most likely ruin this part. You can see the inside here. https://www.clublexus.com/forums/es3...ml#post1385991
To clean the Idle air conrol valve you can simply unbolt it and clean it up with some throttle body cleaner. You'll probably want to replace the gasket. Which I believe is part no. 22278‑62030.
05-30-13, 08:34 AM
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It doesn't sit under on the 3VZ. It sit on the side of the manifold right after the throttle body on the side that faces the rear of the car. You have a hose that runs right to it coming off of your main air cleaner hose. This is what it looks like http://www.rockauto.com/catalog/more...751&cc=1387021
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05-31-13, 06:27 AM
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It doesn't sit under on the 3VZ. It sit on the side of the manifold right after the throttle body on the side that faces the rear of the car. You have a hose that runs right to it coming off of your main air cleaner hose. This is what it looks like http://www.rockauto.com/catalog/more...751&cc=1387021
06-02-13, 05:36 AM
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It doesn't sit under on the 3VZ. It sit on the side of the manifold right after the throttle body on the side that faces the rear of the car. You have a hose that runs right to it coming off of your main air cleaner hose. This is what it looks like http://www.rockauto.com/catalog/more...751&cc=1387021
i got the iac valve here with me just not sure where the washers go so i just put them in the bottom of the black casing
06-02-13, 07:29 AM
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06-02-13, 07:35 AM
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wait i think i know where the two washers go no they go on the other end that seals the incoming air (valve end) but why two washers and not just one 
actually im missing the bearing which probably explains why
i should look where i disassembled for some more clues
actually im missing the bearing which probably explains why
i should look where i disassembled for some more clues
Last edited by lexy2013; 06-02-13 at 08:08 AM.
06-02-13, 07:22 PM
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cleaned IAC valve and i still getting clouds of white smoke from exhaust bit of water drip upon start up exhaust fumes smell ridiculous... engine idles awkwardly rpm rise then drop
no coolant loss or decrease in level ???
no coolant loss or decrease in level ???
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