Fault code Read....... Whats going on??

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#1
Everytime I start my car and drive for a little bit the check engine light comes on and reads Cb- Oxy Sensor control limit, cyl #4-6 and E4 Oxy Sensor Adaption Limit, cyl# 4-6. What could be the problem????? Could it have anything to do with my new dinan exhaust?? My car is a 1998 4 door M3 Automatic.
 

epj3

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#2
Sounds like the oxygen sensor for those 2 cylinders (i believe this car has 2 oxygen sensors, one for cylinders 1 - 3 (which are the 3 closes to the front of the car) and then another for 4 - 6, which are the rest of them (that obviously means sensors 4, 5, and 6) so I would suggest that you make sure the sensor is plugged in and installed correctly for the 3 cylinders closes to the passenger compartment. This might even be hard to get to, and make sure the engine is COMPLETELY cool, exhaust systems can (obviously) become VERY hot (to the point that water vaporizes on contact)
 


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