986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - o2 sensor question

liquidimports84 · 06-19-2018, 04:06 PM

2001 Boxster

I had a p0139 error code. o2 sensor bank 1 sensor 2. Also my car hesitates on acceleration. I unplugged the sensor and plugged it back in and messed with a wire a bit. Hesitation got much better and the error code went away. Should I go ahead and replace the o2 sensor of should i investigate for injector leaks before i replace the sensor? Also if I should replace the sensor what is the part #? Before Starter Catalyst, Left or Right) or After Starter Catalyst?

06-19-2018, 04:06 PM	#1
liquidimports84 Registered User Join Date: Apr 2015 Location: Indianapolis Posts: 41	o2 sensor question - code p0139 2001 Boxster I had a p0139 error code. o2 sensor bank 1 sensor 2. Also my car hesitates on acceleration. I unplugged the sensor and plugged it back in and messed with a wire a bit. Hesitation got much better and the error code went away. Should I go ahead and replace the o2 sensor of should i investigate for injector leaks before i replace the sensor? Also if I should replace the sensor what is the part #? Before Starter Catalyst, Left or Right) or After Starter Catalyst?