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BMW 3-Series (E90 E92) Forum
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Looking for Opinions on Boost by JB4 Logging
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| 07-19-2018, 11:50 AM | #1 |
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Enlisted Member
 
2
Rep 37
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Looking for Opinions on Boost by JB4 Logging
Im feeling a noticeable lag in the boost when pushing throttle whether from 2nd or 4th. In 5th and 6th, it even feels like a stutter at 4000 rpm which felt like possible fuel issue.
Where my confusion lies, is when car is turned on with JB4 installed, the first strong pull triggers a 30FF but when codes deleted, I won't receive it again until the car is restarted again. When the JB$ is removed, no faults but I can still feel the stutter during full throttle. Can anyone give me opinions based of JB4 logs: Boost leak, boost solenoid, fuel pump issues, something else I don't see??? Please help! Appreciate any input. Thanks. |
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