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Helpful Datalog Parameters for Diagnosis

  • Ethanol Final

  • Ethanol Raw

  • Ethanol Volts

  • Sns Volts TGV R

  • TGV Volts Left

  • TGV Volts Right

  • zDEBUG GF03

  • zDEBUG GF16

COBB8

 What is it?

Gateway Module Not Detected

 Why am I getting it?

When starting the car up the ECU was unable to communicate with the COBB Gateway module.

 What does it do?

To avoid unwanted issues if (for example) you were on higher ethanol content and you lost communication with the gateway, you will see a few other DTCs for things as well as some failsafes enable.

  • COBBC

    • Gateway Custom Sensor Error

  • COBBE

    • Gateway Ethanol Sensor Error

 What caused it and how do I fix it?

This can happen if the Gateway harness is loose, shorted or not plugged in correctly to the vehicle side or the Gateway side. Or if the fuse has blown in the power feed for the Gateway. Double-check your connections and that there is no physical damage to any of the components

COBB9

 What is it?

Lost communications with Gateway module

 Why am I getting it?

If the Gateway was communicating properly at startup but later lost communication with the vehicle this DTC will come up

 What does it do?

To avoid unwanted issues if (for example) you were on higher ethanol content and you lost communication with the gateway, you will see a few other DTCs for things as well as their failsafes will enable.

  • COBBC

    • Gateway Custom Sensor Error

  • COBBE

    • Gateway Ethanol Sensor Error

 What caused it and how do I fix it?

This can happen if the Gateway harness is loose, shorted or not plugged in correctly to the vehicle side or the Gateway side. Or if the fuse has blown in the power feed for the Gateway. Double-check your connections and that there is no physical damage to any of the components

COBBA

 What is it?

Gateway firmware is the incorrect version.

 Why am I getting it?

This will come up if the firmware on the Gateway module itself is out of date.

 What does it do?

To avoid unwanted issues if (for example) you were on higher ethanol content and you lost communication with the gateway, you will see a few other DTCs for things as well as their failsafes will enable.

  • COBBC

    • Gateway Custom Sensor Error

  • COBBE

    • Gateway Ethanol Sensor Error

 What caused it and how do I fix it?

If there is an important update to the Gateway firmware that is not backwards compatible, you will see this message

COBBB

 What is it?

 Why am I getting it?

 What does it do?

 What caused it and how do I fix it?

COBBC

 What is it?

 Why am I getting it?

 What does it do?

 What caused it and how do I fix it?

  • Dtc will be present (if fuel pressure or another sensor has been enabled in this position)

  • Failsafe (if enabled) for this sensor communication failure will be active

COBBD

 What is it?

 Why am I getting it?

 What does it do?

 What caused it and how do I fix it?

COBBE

 What is it?

 Why am I getting it?

 What does it do?

 What caused it and how do I fix it?

  • DTC will be present if ethanol sensor is enabled and the engine is running.

  • Failsafe for missing sensor will activate

    • Car will use last known good ethanol concentration value. If it isn’t available it will go to a preset value (set by COBB or your Protuner)

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