[bmwlover]

he said no air leaks⁸, but did he actually check physically check the charge pipe or is he just guessing since there is no code for lean mixture or air mass plausibility?

Phisically checked and nothing found. After that I did smoke test and no leakages.

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give me your vin number to check.

I sent vin code in pm but what can be checked remotely by vin? Only service history no?

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In 3 seconds dme is still in open loop and is depending on dme map. You have either

1. Insufficient fuel pressure or fuel supply
2. Insufficient or un-metered air.

Check lambda and multiplicative ratios , and see if they are OK

I checked all live data. Have second car on n55 engine too and when compared, all seems same.