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Old 02-09-2013, 11:10 PM
nospam nospam is offline
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Location: Orange County, CA
Join Date: Apr 2006
Posts: 455
Mein Auto: X1 x28i; 128i; S2000
Originally Posted by nospam View Post
Received my tune today (purchased second hand from a F30 owner). Turns out my engine is the N26 as there is no solenoid controller.
According to the folks on the F30 forum, BMW switched to the electronic wastegate on the N20 engines July 2012. and RealOEM are generally pretty accurate and it seems that all US X1 28i have N20 and no N26. I will try and find where this is stamped on the engine and take a picture. Bottom line is...this greatly simplifies the BMS Stage 1 install/uninstall.
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