New 2009 2010 BMW Z4 - ZPOST - View Single Post - Carvana and check engine light. Failed emissions.

uuJimtq · 09-10-2021, 08:23 PM

I have been having random fuel trim issues for the last 18 months. I find an Italian tune up will clear things up for a while. Thinking build up on the valves. Common for DI. Even worse if you have a turbo.

09-10-2021, 08:23 PM	#3
uuJimtq New Member 2 Rep 9 Posts Drives: e89 Join Date: Feb 2017 Location: St Pete FL iTrader: (0)	I have been having random fuel trim issues for the last 18 months. I find an Italian tune up will clear things up for a while. Thinking build up on the valves. Common for DI. Even worse if you have a turbo.
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