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Old Sep 3, 2008 | 06:55 PM
  #1  
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Default bitter sweet...

although i loooooove my, new to me ARC intake that i got from johnnyboy:



my MAF sensor for the intake has gone off twice in the last 600 miles. =/

im gettin sick of having to go my local lexus dealership to have them keep resetting my ECU, but i am not by any means trying to get rid of this intake.

is there an aftermarket MAF sensor that will work with the increased airflow?

or is there something i can do to make the sensor stop tripping?

help would be greatly appreciated.

Last edited by ChrISF; Sep 3, 2008 at 08:38 PM.
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Old Sep 3, 2008 | 08:03 PM
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O2 sensors don't measure air intake, they measure air/fuel mixture in exhaust gasses... so I'm not entirely understanding your question
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Old Sep 3, 2008 | 08:16 PM
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O2?? or MAF??
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Old Sep 3, 2008 | 08:20 PM
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well the one that is ON the intake. thought it was an 02 sensor.
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Old Sep 3, 2008 | 08:26 PM
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lol yeah is the MAF
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Old Sep 3, 2008 | 08:33 PM
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k. sry, edited**
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Old Sep 3, 2008 | 08:48 PM
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a bit of topic but do our cars use mafs or do they use a combination of a maf (mass air flow sensor) and a map (manifold apsolute preasure) because if they use both like a lot of higher end cars it could be tripping that too
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Old Sep 3, 2008 | 09:25 PM
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this has nothing to do with the manifold. and no there are no other sensors that were on the stock airbox that arent on the new one. there is only the air hose and MAFS
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Old Sep 3, 2008 | 09:55 PM
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Originally Posted by EyeEstwo50
this has nothing to do with the manifold. and no there are no other sensors that were on the stock airbox that arent on the new one. there is only the air hose and MAFS
sure it does! map measures air flow too but in a diffrent way it read's preasure and calculates flow
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Old Sep 3, 2008 | 10:01 PM
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Did you make sure everything is connected tightly? I had an Injen intake on my other car and the CEL went off. Turned out the intake loose and all I did was re tighten everything and it never went off again.
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Old Sep 4, 2008 | 02:44 AM
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Originally Posted by Monkey250
Did you make sure everything is connected tightly? I had an Injen intake on my other car and the CEL went off. Turned out the intake loose and all I did was re tighten everything and it never went off again.
I agree. Usually most problems are but a simple fix
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Old Sep 4, 2008 | 04:36 AM
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Yeah, no offense intended to the ARC box, but there's no way it flows "too much air for the sensor"

I too am betting on something wasn't installed quite right
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Old Sep 4, 2008 | 05:42 AM
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Originally Posted by EyeEstwo50
although i loooooove my, new to me ARC intake that i got from johnnyboy:



my MAF sensor for the intake has gone off twice in the last 600 miles. =/

im gettin sick of having to go my local lexus dealership to have them keep resetting my ECU, but i am not by any means trying to get rid of this intake.

is there an aftermarket MAF sensor that will work with the increased airflow?

or is there something i can do to make the sensor stop tripping?

help would be greatly appreciated.

Very simple problem but I don't know how you'll fix it. The CEL is coming from uneven airflow across the MAF. The MAF is too close to the filter media. It is a factory flaw in the ARC box. You will have to find a way to even the airflow across the MAF to solve this problem.
I'd frist try to block off the filter on top and let it pull like the factory air box from the side. Also you need to put back on the factory air scope. Your not taking advantage of the cold air feature of this intake.

BTW...........Mad JDM points ...1000

Last edited by HKS350; Sep 4, 2008 at 05:49 AM.
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Old Sep 4, 2008 | 07:26 AM
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yea thats an old picture of when i first put the intake on. the stock air dam is back on now.
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Old Sep 7, 2008 | 04:51 PM
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Originally Posted by Kurtz
O2 sensors don't measure air intake, they measure air/fuel mixture in exhaust gasses... so I'm not entirely understanding your question
he is asking about his MAF = MASS AIR FLOW SENSOR ok?
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