Engine Codes

[1badplr]

I know that the codes have been posted on here, I did a search and did not find the one's i'm looking for. Please help, Thanks.

Codes:606,237,652,2121,628,251

 

[mberry]

P0606 Internal ECM Processor



P0237 Turbocharger Boost Pressure Sensor Low



P0652 Sensor Reference Voltage 2 Circuit Low



P2121 Pedal Position Sensor 1 Performance / Rationality



P0628 Fuel Pump Relay Circuit Low, or Fuel Lift Pump Control Circuit Low



P0251 Injection Pump Fuel Valve Feedback