| 01-04-2021, 07:38 PM | #1 |
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New Member
3
Rep 9
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Throttle issue
Hello everyone, i have a BMW F10 M5 30-jahre edition that has a full akrapovic exhaust and Downpipe with Jb4, without tune...
As you can see in the Jb4 data log, the throttle is not opening fully, who knows why!!?, what should i do!!? The car was tuned by PP-performance, but its now stock tune.. |
| 01-05-2021, 01:52 AM | #2 |
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Private First Class
 
44
Rep 115
Posts |
The throttle closure is because it is slightly over boosting. When the dme reads boost over the target boost it closes the throttle to control it. This is accentuated by the downpipes because the turbos spool different than they would with stock downpipes. A tune will usually fix this. Maybe do a log with the tune and see if you are still getting the closures.
Good luck |
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Appreciate
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