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4
2007 525i
Good morning thank you for reaching back to me I don’t know how to reset the perimeters and adjustments unless it is only to Disconnect the battery for 15 to 30 minutes is that something that I need to do thank you please let me know 🙏 -
4
2007 525i
when I put the new sensor in I only cleared the codes with my scanner did I have to disconnect the battery for 15 to 30 minutes so the computer would adjust to the new sensor I don’t know about any adjustments thank you for getting back to me -
4
2007 525i
My thought is that the maf sensor is working correctly. did you reset the adjustments and parameters after replacing it? I agree with @Greydog. check the inlet pipe between the maf sensor and the throttle body for any cracks, especially on the elbow part. Throttle body could also be the issue. my x5 has the 3.0i engine and was all over the place with idle and cutting out etc. it was the throttle body which was faulty , but while I replaced it, I found the inlet pipe had little splits in it at the elbow folds and was leaking in air, confusing the mixture as the new maf sensor was saying one thing and the air ratio was another. The old maf sensor was reading a lower value and the engine had over compensated for it. Check for splits, reset the values and see where it goes. -
1
Boost gauge help
Morning Jamie Welcome to the Forum I would think you need a feed from the Boost relief valve. Are there no instruction with your kit ? Take a look at www.realoem.com put the last 7 digits of your Vin into the search box it will call up your model then check the engine section/inlet/turbo Dave -
1
No boost and strange noise
Morning JIm If memory serves your car has twin turbo's a small one for low/mid range and the bigger one below for mid/top end boost. The vacuum drive shifts boost to the larger turbo, so when you felt for any wobble which turbo were you feeling? and which side remember the exhaust side really does take a battering. From your description the Vacuum drive is working but the flap it operates into the large turbo or the turbo it's self needs some investigating Those are my thoughts Dave
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