LS1TECH - Camaro and Firebird Forum Discussion

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-   PCM Diagnostics & Tuning (https://ls1tech.com/forums/pcm-diagnostics-tuning-7/)
-   -   what are these DTC's from? (https://ls1tech.com/forums/pcm-diagnostics-tuning/1397252-what-these-dtcs.html)

cals400ex Mar 13, 2011 11:09 AM

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

joecar Mar 13, 2011 07:01 PM

Sounds like the SDM/SIR/airbag module has been unhappy or was otherwise failing.

cals400ex Mar 14, 2011 05:00 PM

i wasn't sure which of these codes would actually cause the SES light to come one...

foff667 Mar 14, 2011 05:08 PM

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.


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