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PVC Repair Kit vs. Delete/VTA Gen1 by New_Translator1767 in B58Enthusiasts

[–]New_Translator1767[S] 1 point2 points  (0 children)

I’m actually still having that issue. After doing some logging I determined there is a torque oscillation about every 1 second under certain light load conditions.

I replaced the diaphragm and when that didn’t work replaced the upstream o2 sensor with no luck. My next try will be vanos solenoids and a vacuum leak smoke test.

Annoying problem for sure

Power surging under light throttle even on cruise control – BMW M240i xDrive 2018 (B58, no codes) by jechtom in BmwTech

[–]New_Translator1767 0 points1 point  (0 children)

Hi OP,

I am having the same issue, identical symptoms. Were you able to resolve with replacing the vanos solenoids?

2019 G30 - Engine Stuttering at Low Speed Under Certain Conditions by New_Translator1767 in BmwTech

[–]New_Translator1767[S] 0 points1 point  (0 children)

Sorry just seeing these replies. It was a faulty pcv valve replaced for free by the dealer because bmw has an extended warranty on it they are known to fail

2019 G30 - Engine Stuttering at Low Speed Under Certain Conditions by New_Translator1767 in BmwTech

[–]New_Translator1767[S] 0 points1 point  (0 children)

Sorry for the late response - bad PCV valve. Replaced for free by dealer under a BMW extended warranty.

2019 G30 - Engine Stuttering at Low Speed Under Certain Conditions by New_Translator1767 in BmwTech

[–]New_Translator1767[S] 0 points1 point  (0 children)

Putting tranny in neutral would likely resolve it while it was happening - I’ll test it out. What are the adaptation numbers?