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intake air temp sensor/rough idle/stalling

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Old Oct 17, 2011 | 02:09 PM
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Aneyehillateher's Avatar
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intake air temp sensor/rough idle/stalling

Sup yall, been a while. Anyhow I'm throwing code 0401 which reads off as intake air temperature sensor. I'm a dumbass and was using search wrong and thought it was the MAF :P Anyhow is there anyway to clean the IAT or am I stuck getting a new one?
Thanks

Last edited by Aneyehillateher; Oct 17, 2011 at 04:54 PM.
Old Oct 19, 2011 | 06:05 AM
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Originally Posted by Aneyehillateher
Sup yall, been a while. Anyhow I'm throwing code 0401 which reads off as intake air temperature sensor. I'm a dumbass and was using search wrong and thought it was the MAF :P Anyhow is there anyway to clean the IAT or am I stuck getting a new one?
Thanks
You may be able to clean the contacts if they are corroded. Either way you should test the sensor as outlined in the FSM before buying a new one.

Also, a bad IAT sensor should not cause your engine to idle rough and stall like the title of your thread suggests.
Old Oct 19, 2011 | 07:05 AM
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dude...it costs 25 bucks a new one. Jus replace it

EDIT:

AJM is right. Check the harness and make sure its not corroded or burned out.
Old Oct 21, 2011 | 07:10 PM
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Thanks for the suggestions. Checked for corrosion and all that, everything looks good. Gonna try testing the sensor this weekend. As far as it stalling and idling rough, any ideas? I'm at a loss since theres no other codes being thrown...
Old Oct 31, 2011 | 02:25 PM
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Just changed the IATS and everything was fine driving around town today until I pulled into the gas station, idle dropped to 500 when I let off the gas then slowly plummeted to a stall. Already cleaned the MAF and only code I get is the stupid rear heated o2 sensor. Limited financially atm so trying to NOT take it in to a mechanic, anyone have any ideas what else I could try? Thanks in advance!
Old Oct 31, 2011 | 02:52 PM
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Look for a source of unmetered air into the intake manifold. Disconnected or deteriorated vacuum hoses, blowby hoses, leaky gasket, etc. Particularly if you or anybody else has been doing surgery in the engine bay.

Or you could be off in the other direction, so make sure the idle air control valve is clean and working.
Old Oct 31, 2011 | 04:25 PM
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Pull each spark plug and check each one.
Old Nov 1, 2011 | 11:52 AM
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I just tore down and cleaned my TB and IAC valve. It was pretty gunky. You might think about doing that if you haven't in a while or ever. Also, check those hoses like Tappman said. Particularly from the air intake that leads to the TB to the IAC valve

Last edited by rvskull34; Nov 1, 2011 at 11:57 AM.
Old Feb 15, 2012 | 12:12 AM
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good info
Old Oct 5, 2012 | 09:20 PM
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Intake Air Temp Sensor, IATS sensor

Where did you buy YOUR IATS sensor for the maxima?
I have not been using this sensor for over 2 years now.
Sensor was over $100 I had a fix for $2 but I have to be on top of this. especially when seasons change and temps change.

So Where did you buy the INtak Air Temp Sensor?
and How much did you pay for it?

Thank you.



Originally Posted by Aneyehillateher
Just changed the IATS and everything was fine driving around town today until I pulled into the gas station, idle dropped to 500 when I let off the gas then slowly plummeted to a stall. Already cleaned the MAF and only code I get is the stupid rear heated o2 sensor. Limited financially atm so trying to NOT take it in to a mechanic, anyone have any ideas what else I could try? Thanks in advance!
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