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Rough Idle and loss of power during certain rpms

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Old 02-12-2009, 08:48 AM
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Rough Idle and loss of power during certain rpms
Ok so my dad owns a muffler shop and yesterday I decided to try to make my own cold air intake instead of buying one. It went great, I used 3 inch pipe and was able to make a one piece cai. I have reset the ecu, but the idle is **** now, and when I am driving around it feels like it is sputtering at certain times when I give it gas. Any ideas on what is going on with it?
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Old 02-12-2009, 07:39 PM
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no screen, maf getting confused/too much air getting past unmetered. maybe left the little vac line from under the manifold to the solenoid uncapped/off.

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Old 02-12-2009, 07:41 PM
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also, 3 inch piping is a downgrade from factory specs.
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Old 02-12-2009, 07:45 PM
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Think you guys got this one pretty covered!
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Old 02-13-2009, 12:56 PM
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GA
Well what size should it be if not 3inch, I used 3 inch because that was the size of the aem and mazdaspeed cai?
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Old 02-13-2009, 06:03 PM
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Originally Posted by neokhz
Well what size should it be if not 3inch, I used 3 inch because that was the size of the aem and mazdaspeed cai?
AEM/Mazdaspeed CAI as well as the factory tube is 3.375" ID
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