plz help

2C7F

2C7F Lambda probe behind catalytic converter 2, trimm control

Error will cause a warning light

Error is currently present

Test conditions have been completed

Signal or value below threshold







2C2B

2C2B Lambda probe in front of catalytic converter, system check

Error will cause a warning light

Error is not currently present

Test conditions have been completed

Short circuit or signal interruption







2C2C

2C2C Lambda probe in front of catalytic converter 2, system check

Error will cause a warning light

Error is not currently present

Test conditions have been completed

Short circuit or signal interruption









im keep getting those codes...

i just changed sparks. but found some oil from sparks # 2