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BMW 3-Series (E90 E92) Forum
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(HELP) installed jb4, car wont start (HELP)
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09-12-2019, 10:59 PM | #1 |
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(HELP) installed jb4, car wont start (HELP)
Hi. I just installed a jb4 into my 2008 335xi and everything worked, Bluetooth connected and I could adjust settings. But everytime I attempt to start the car, it just cranks and doesn't turn over. I bought the jb4 used. Any help would be great. Thanks.
Also thought to add that sometimes there is a loud whining in the front of the car. The car was working perfectly before this (around 3 hours ago). |
09-13-2019, 06:04 AM | #2 | |
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09-13-2019, 11:38 AM | #3 |
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I set it to map 0, still just cranks and doesn't start. All my connections seem good too. I am getting 12.1 volts through the entire jb4, no idea why its not working.
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