So, the answer is.... air leak.
There is a molded hose that connects to the boot between AFM and throttle body that was crumbling. It was NLA for my Euro car. My brother was able to find one from BMW.
Start with the simple stuff (stupid)...
There is a molded hose that connects to the boot between AFM and throttle body that was crumbling. It was NLA for my Euro car. My brother was able to find one from BMW.
Start with the simple stuff (stupid)...
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