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BMW 3-Series (E90 E92) Forum
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SOLVED: N54 Oscillating throttle position/surge at steady speed
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09-29-2022, 12:46 PM | #89 |
First Lieutenant
171
Rep 341
Posts |
You absolutely can get the oxygen sensors to complete for inspection. You have to flash to MHD V10 Stage 0 tune and select your necessary options (catless, tmap ect.). Then do a proper drive cycle. I just did this this week and everything set except catalyst. It took a few days for Evaporative system to set. Need to be under 3/4 tank of gas.
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04-17-2024, 09:22 AM | #90 |
Registered
0
Rep 1
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I have been dealing with the same issue of lunging at steady speeds. My 08 335 is completely stock with no tunes. I have replaced the coils and plugs and just completed a walnut blast of the intake valves. Ran great for about 20 minutes after the walnut blast and now is back to lunging. So far I am not getting any codes to show up. Any ideas would be greatly appreciated. I am new to the BMW family.
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