Fault Codes 27B1 and 274A, help please

[bigmac102377]

Been having the same increased emission light coming on, it stays off once I clear it but sometimes a week later, or a month later it kicks again. The 2 below are the same faults I keep getting.

274A
Lambda probe pump current synchronisation error before cat Bank 1
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Timeout
27B1
Secondary air system throughput bank 2
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

It's also logged a 27AB and 2729 once over the past year. Primarly 27B1 and 274A. I'm stationed in Italy so the dealer isn't much help. Hoping someone can point me in a direction. yes, my car is off warranty.

[happos2]

Originally Posted by bigmac102377

274A
Lambda probe pump current synchronisation error before cat Bank 1
Error will cause a warning light
Error is not currently present
Test conditions have been completed

27B1
Secondary air system throughput bank 2
Error will cause a warning light
Error is not currently present
Test conditions have been completed

Switch around bank 1 and bank 2 Pre-Cat O2 sensors. If faults follow O2 sensor, replace O2 sensor.

[Ginlaan]

Have the same codes. Just pulled my oxygen sensor out on the right side and its black as night. was going to start screwing with the air pump but seeing this oxygen sensor come out so black makes me thinks the nose is not working right.

[brown_bison]

bigmac102377 Resurrecting this old thread. I am having the same error codes. Did you find out what the issue was and solution?