Cayenne S (9PA) V8-4.5L (2003)
Oxygen Sensor: Description and Operation
Notes On Troubleshooting
Working on oxygen sensors
NOTE: Oxygen sensors used for DME 7.1.1
The LSU (universal oxygen sensor) can determine the oxygen value in a wide range.
The LSF (flat oxygen sensor) can only determine oxygen values greater or less than 1 (the rich-lean jump).
Oxygen sensor ahead of catalytic converter (LSU) has a 6-pole connector
Oxygen sensor after catalytic converter (LSF) has a 4-pole connector
NOTE: