Quote:
Originally Posted by KingLT1
It doesn't matter if you have them or not. There is still a connection point there with or without out them and the post cat o2's are picking up the leak.
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Crisis averted. It was a loose O2 sensor. Thank you gents. 
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2023 BMW X4M Competition (Downpipes, Midpipes, Intake, Exhaust, Tune)
2023 ZL1 1LE BC Forged KXO5, 325/345 R888R, KPMF Satin Pearl Wrap, 2650/Heads/Cam/3200 stall/Meth- 918 rhwp/842 rwtq, Girodisc/Carbotech AX6, Race louvers.
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