Installed JB4 and now getting 30FF
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11-18-2012, 05:29 PM
Drives: E92 JetBlack
Join Date: Jul 2012
Location: Long island
Where do you read the word Always in my sentence BMWD?
If the jb4 were faulty it would give you more then just low boost codes so that really doesnt make much sense but who knows.
A 30 second smoke test would solve your guessing
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