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SOLVED! N55 - Emissions Shop Can't Communicate with ECU - New Owner (STL)
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07-10-2019, 08:04 PM
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The Wind Breezes
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Drives: 135i N55 DCT
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Can't communicate with computer usually means JB4 is installed. It's probably in invisible mode or whatever and they didn't bother to check the wiring loom. Or you have a flashtune that locked the OBD port.
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