P2096
i have a fault code on mijn 986 s 2003
P2096 Post Catalytic Fuel Trim Bank 1 System Too Lean i replaced the post cat o2 sensor, but the fault comes back after 80 miles when i read the o2 sensors value with started engine bank 1 post cat sensor stays almost all the time at 0.1 v on bank 2 the sensor is 0.1 at idle, on acceration it goes up to 0.6-0.8 but bank 1 remains at 0.1 when i go off trottle both the sensors go to 0.000 both the o2 sensors are new, the dealer thinks i have a bad cat, but he is not 100% sure take the gamble en replace? or are there things i can check myself? |
now by accident, i noticed that in high rpm above 5000,
the sensor react normal, |
Are the front O2s cycling back and forth on both banks?
|
Quote:
The second sensors On bank 2 stays 0.1 on idle En Goes slowly up When i raise rmp or driving On bank 1 iT stays 0.1 if i drive Only at high rpm iT Goes also to 0.6-0.8 |
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