2000 BMW 328i "air system bank 2" Questions

got a code p1421 on my 2000 bmw I have a 2000 bmw 328i,I pulled a trouble code p1421.have do I fix it secondary air air system bank 2 may need a air pump bank 2 or a air diverter valve hope that helps

...System Leak Detected - Small Leak P0095 Intake Air Temperature Sensor 2 Circuit P0096 Intake Air Temperature Sensor 2 Circuit Range/Performance P0097 Intake Air Temperature Sensor 2 Circuit Low P0098 ...

...System Leak Detected - Small Leak P0095 Intake Air Temperature Sensor 2 Circuit P0096 Intake Air Temperature Sensor 2 Circuit Range/Performance P0097 Intake Air Temperature Sensor 2 Circuit Low P0098 ...

...System Leak Detected - Small Leak P0095 Intake Air Temperature Sensor 2 Circuit P0096 Intake Air Temperature Sensor 2 Circuit Range/Performance P0097 Intake Air Temperature Sensor 2 Circuit Low P0098 ...

...Air Injection System Relay • 36 DME Main Relay • 37 DME Main Relay : Delay • 38 Clutch Switch -Plausibility • 39 Brake Light Switch or Brake Light Test Switch • 40 Brake Light Switch or Pedal Value ...

Air Injection System Malfunction P0411 Secondary Air Injection System Incorrect Flow Detected P0412 Secondary Air Injection System Switching Valve "A" Circuit Malfunction P0413 Secondary Air Injection

...Po491 and Po492 secondary air injection system bank 1 and 2 respectively? P0491 Secondary Air Injection System (Bank 1) P0492 Secondary Air Injection System (Bank 2) Good luck for you! OBD2 code ...

...1 sensor 2 check for air leaks in the exhaust system, air leaks intake manifold.look for vacuum lines leaks,look for vacuum leaks pcv valve and hose and make egr valve not stuck open or gasket

...system 2 lean bank 1 generic code PO174 system 2 lean bank 2 manufacture code P1519 continuous intake manifold runner control closed bank 1 seep2006 This can be caused by a faulty mass air flow ...

Air Flow Circuit Intermittent P0105 MAP Sensor Circuit Insufficient Activity P0106 Manifold Absolute Pressure (MAP) System Performance P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage