Modern Vespa : When to replace O2 sensor

When to replace O2 sensor

OP Budz UTC details Molto Verboso GTS 300 Super ABS/ASR (sold), BV 350 ABS/ASR (crashed) Joined: UTC Posts: 1137 Location: Washington DC
OP Budz Molto Verboso GTS 300 Super ABS/ASR (sold), BV 350 ABS/ASR (crashed) Joined: UTC Posts: 1137 Location: Washington DC	UTC quote seems I have a leak in my exhaust system. I have new graphite gasket so I suspect there is a leak in the manifold (cracked or rusted). Question is, shall I replace the O2 sensor too? I have 5,200 miles on a 2015 GTS... Thanks in advance

jimc UTC details Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 44337 Location: Pleasant Hill, CA
jimc Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 44337 Location: Pleasant Hill, CA	UTC quote No need at 5,200 miles. At 30,000 miles, probably, as the old one will be well stuck in there.

OP Budz UTC details Molto Verboso GTS 300 Super ABS/ASR (sold), BV 350 ABS/ASR (crashed) Joined: UTC Posts: 1137 Location: Washington DC
OP Budz Molto Verboso GTS 300 Super ABS/ASR (sold), BV 350 ABS/ASR (crashed) Joined: UTC Posts: 1137 Location: Washington DC	UTC quote Thank you jimc!

Jimding UTC details Addicted BV 350 Joined: UTC Posts: 943 Location: Nebraska
Jimding Addicted BV 350 Joined: UTC Posts: 943 Location: Nebraska	UTC quote Generally Generally there is a spec on voltage on an O2 sensor. But if the 'check engine' or 'FI' warning light isn't on, most likely the O2 sensor is OK. A bad sensor will usually trigger a warning light, and engine performance will usually suffer. Probably best to leave it alone until there is a problem.

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