Finished up the 323i throttle body install the other day. Pretty straight forward going back together, except that we tossed the crappy old torn rubber intake boots in favor of new boots. New throttle body ready to go on. TB installed with new rubber intake boots. Since the car came in on a flat bed, I didn’t really know the condition of the car. Once it was running, it was discovered it had a large oil leak and a significant …

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This poor little thing was towed in with an EML light and check engine light on. The EML light typically relates directly to the throttle body being bad (internal TPS sensors on this model), and the CEL revealed a list of about 9 codes ranging from secondary air injection problems to MAF sensors to cam sensors to O2 sensors. Yuck. But, to get it back on the road, the EML was the main issue, so I ordered in the new …

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