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    Yamaha sidewinder Close loop

    I didn’t see any vacuum line going to the sensor there’s only 5 wire going at the o2
  2. Y

    Yamaha sidewinder Close loop

    Hey guys, I have a Yamaha sidewinder 2017 XTX with TD tune (stock exhaust bundle).I also bought a close loop ecu master from TD last season with no issues till yestherday. I was going for little ride and I notice my AFR on my cluster was going from 14.7 to around 80-120. I thought it was my o2...


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