Hi I thought I would throw my 2 cents into the mix.
What happened when they put the stock air box on?
I have seen this many times when I install CAI in the newer model cars.
I hope this comes out right lol
You see with all the smog crap and the computer monitoring how much air the engine is getting (with the MAF) and how much air/fuel is in the exhaust (With the O2 sensors).
The stock air box and air tube are set up to deliver a set amount of air. Now the MAF sensor and computer are only able to read so much air flow. Its like a volume nob on a radio it will only go up so loud, The MAF sensor uses the same principle It will only send so much info to the computer. The stock
computer can only see / understand so much info from the MAF.
Now with the CAI you are giving the engine more air then the MAF sensor can calculate (there is more air them what the computer thinks
). So the O2 sensors are telling the computer there is a problem because there is to much air in the exhaust. Because the engine can only use so much air.
I have seen and done two things to fix this problem. This has worked for me and my customers, I am not saying it will work for you.
first and most easy is to get what is called an O2 Sensor Extender What this will do is move the O2 sensor up out of the flow of the exhaust. (Lowing what the sensor tells the computer)
Next and not so cheap is to get a power chip ether an Eadg or a Super chips. What this will do is remove the BS computer restrictions put in by at the factory.On a side note
If this works please just say thanks.
please do not accept my answer this is just what I would and have done to fix a the problem. Now do not listen to the dealership the dealer is a high priced parts changer.
Hope this helps
Edited by david on 7/7/2010 at 6:04 AM EST