Quote:
Originally Posted by bmw335ie90
If you are still doing revisions, could you ask? It would be good information to have.
N55 has valvetronic to control engine load/air flow but I do not think many tuners fully understand how the tables work and its mostly guess and check. It makes sense why people have idle issues and part throttle issues with a lot of n55e tunes.
Your tuner seems to have ditched using valvetronic control and instead is using the throttle butterfly similar to how a n54 tune would be done.
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I'll find out. I'll let you know once I hear back.