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9 Posts
I have a 2004 Mazda 6 and this past summer i installed an AEM cold air intake. Car ran great for a little over 2 monthes. Then in early October i noticed while i was stopped in traffic my rpms were jumping from idle to around 1000. Then a few day later my check engine light came on and the car would stumble a little bit. Ive read articles on the forum about a throttle body problem so i took off my cai and put my stock airbox and resonator back on so i could take my car in for service. Now it runs fine, any ideas on what might have been the problem, cause im confused.