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Porsche Forum - Porsche Enthusiast Forums (https://www.germanautoforums.com/forum/)

- Porsche 911 (https://www.germanautoforums.com/forum/porsche-911-8/)

- - O2 Oxygen Sensor (https://www.germanautoforums.com/forum/porsche-911-8/o2-oxygen-sensor-4542/)

PorscheDoc

Oct 31, 2007 11:00 AM

RE: O2 Oxygen Sensor

Cylinders 1-3 (drivers side) are bank 1, and cylinders 4-6 (passenger side) are bank 2. Then on each bank, you have a pre cat sensor, and a post cat sensor.

goebels97

Oct 31, 2007 12:18 PM

RE: O2 Oxygen Sensor

Thanks, now I know it is my MAF since bank 1 ( P1123 oxy sens 1-3) and bank 2( P1125 oxy sens 4-6) are involved. -Kip

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