I have a 2008 bentley gtc and i have 2 codes that came up 1321 and 1323. Can anyone help me fix these codes. Ie what should i replace to delete them. Thanks Steve

 

Hi Stephen:

Are these P-codes? P1321; P1323?

If so, these are knock sensor codes. Two of the knock sensors are no longer reporting so the ECUs detected failurs and sent the CELs. Not very likely these are failed knock sensors simultaneously; more likely a wiring issue via the sensors.

 

Hi Bwings yes they are p codes. Ill check the wiring as you recommended and i give you an update if that fixes the check engine light problem. Thanks Stephen

 

OK Good Stephen. Interested in hearing back.

These knock sensors play a vital role in OBDII Engine management systems by contributing to the control of engine timing. Therefore, the sensors are monitored and have to "report in" they are active and alive even if there is no engine knock. In your case, two sensors are no longer reporting they are active. Again, not likely they both failed, so more likely something has interrupted their signal.

All the Best,

Steve