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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Upgraded JB4 and got lambda codes



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      05-19-2014, 08:52 AM   #1
Timdatoolman
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Upgraded JB4 and got lambda codes

Goodmorning! I just installed my JB4 two days ago and it was running like a dream so I decided to update the firmware. Since I updated it I keep getting these codes. My car is stock minus the DCI. Any help with getting rid of these codes? Should I downgrade my JB4?

Thank you

2C7E Lambda probe behind catalytic converter, trimming control
2C2B Lambda probe in front of catalytic converter, system check
2C2C Lambda probe in front of catalytic converter 2, system check
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      05-19-2014, 08:56 AM   #2
Rat_House
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what map are you running?
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      05-19-2014, 09:02 AM   #3
Timdatoolman
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I'm on Map 1. I erased the codes and put it on map 2 but the codes came back.
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