2000 BMW 323i Q&A

2000 BMW 323i Question: Codes are 1189 and 1188, will not pass inspection, what are these codes?

The codes my car is pulling are 1189 and 1188. Was told by two mechanics that I need a cat converter, the one yesterday said nothing is wrong with it. Has new air mass flow, fuel filter, O2 sensors but still not passing inspection. Any help appreciated -
Answer 1
The codes refer to fuel trim limits. The computer is trying to enrich and lean out the fuel system to compensate for something. It could be about a dozen different things. The car will need to be properly diagnosed by a knowledgeable technician. -