No big updates - just performed some overdue maintenance on the car. Changed the oil, K&N air filters, and addressed an 02 sensor issue.
I had been throwing misfire and 02 sensor codes for a long time now and we thought I had an oil leak on the passenger side near the turbo. There would be a puff of smoke from the passenger side engine bay when the car would hit boost. I ordered a replacement Denso 02 sensor and upon further inspection, I found a very large exhaust leak between the 02 housing and downpipe/testpipe.
I replaced the sensor since I didn't want to chance redoing the work later on. I also purchased some Z1 MLS gaskets for both ends of the downpipe/testpipe.
Hopefully this will solve the issues.
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