what are these DTC's from? Here is a list of the DTC's that HP tuners gave me. I am getting a service engine light and I am not sure why. The MAF sensor is deleted and I am running a 2-bar map sensor with my procharged setup. Any suggestions? [PCM] P0103 - Mass Air Flow (MAF) Sensor Circuit High Frequency (Pending) (Current) (Immature) [Restraints] U1000 - Class 2 Communication Malfunction (History) (Immature) [Restraints] B1001 - Option Configuration Error (History) (Immature) [Restraints] U1016 - Loss of Class 2 Communication with VCM (History) (Immature) Continuous Tests Misfire: Complete Fuel System: Complete Comprehensive Component: Complete Once Per Trip Tests Catalyst: Complete Heated Catalyst: n/a Evaporative System: Complete Secondary Air System: Complete A/C System Refrigerant: n/a Oxygen Sensor: Incomplete Oxygen Sensor Heater: Incomplete EGR System: Complete |
Sounds like the SDM/SIR/airbag module has been unhappy or was otherwise failing. |
i wasn't sure which of these codes would actually cause the SES light to come one... |
the maf code is the only one that will set a ses light. The other 3 are common after reading/flashing the pcm and are usually nothing to worry about. |
| All times are GMT -5. The time now is 05:57 PM. |
© 2026 MH Sub I, LLC dba Internet Brands