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would an S&B intake with the cover off it make these codes go off? my intercooler pipe disconnected once at the intercooler while i was driving and it set off these codes. but we reconnected it and i had the codes removed. they came on again though..?
 

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What code are you getting?
P0403?

I had this code come on a few weeks after I installed my downpipe/exhaust.

I dont believe they are related.
 

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Did you get your p0402 code fixed? What was your remedy?
I have the same code come up when I fitted my pipe and cold intake.
 
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