Getting CEL and funky code after installing DP

j2dad5389 · 05-06-2020, 11:35 AM

Anyone seen this code before? How can I fix this?

Code: 12B304 Lambda probe heating after catalyst activation: Line Break

XutvJet · 05-06-2020, 11:39 AM

It appears that one of the O2 sensor wires was damaged when the DP was installed or one of the O2 sensor connectors is not fully seated.

05-06-2020, 11:35 AM	#1
j2dad5389 Lieutenant 372 Rep 561 Posts Drives: 2020 M340i Join Date: Jul 2019 Location: Austin, TX iTrader: (0)	Getting CEL and funky code after installing DP Anyone seen this code before? How can I fix this? Code: 12B304 Lambda probe heating after catalyst activation: Line Break
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05-06-2020, 11:39 AM	#2
XutvJet Major General 5538 Rep 5,364 Posts Drives: 2011 Cayman Base, 2016 M235 Join Date: Mar 2016 Location: Kansas City iTrader: (-1)	It appears that one of the O2 sensor wires was damaged when the DP was installed or one of the O2 sensor connectors is not fully seated. __________________ The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
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