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Old 11-23-2005, 12:10 PM   #1
AndyWRXWG
Scooby Specialist
 
Member#: 23784
Join Date: Aug 2002
Chapter/Region: MWSOC
Location: Mundelein, IL
Vehicle:
2005 M3
Tiag

Default cel after installing APS TMIC with cobb 2.5

Ok over the weekend I installed an APS TMIC the older version. Now today just driving down the street the cel pops on and I pull over to check the code. I believe it was the PO171 lean A/F code.

Would the IC alone cause me to run a little lean? Or should I be looking for a hose that is leaking? Car seems to run fine haven't heard any knock. I think I'll switch to econo mode for now just in case.
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