[AusTTRS]

Hi all,

 

I have had a CEL / MIL on the dash for a few months & can't clear it. Car runs perfectly fine & doesn't use more fuel than expected.

 

Most discussion around the G235 fault is about Tdi engines, & often engines with 2 banks (V6/V8) & thus having >1 EGT sensor. One forum post in particular had the same 001348 & P0544 codes as me, but had 4 temperatures shown in VCDS & that apparently helped the bloke ID the fault.

 

Freeze Frame:
RPM: 3197 /min
Speed: 85.0 km/h
Voltage: 14.21 V
Temperature: 84.6°C
Temperature: 930.0°C
Temperature: 288.0°C
Temperature: 252.0°C

 

My scan shows 2 temperatures, both 26 deg C, which would be the ambient temp in the garage on the day the ignition was turned on & the sensor "failed".

 

I also have a P3 Cars OBD2 gauge which makes it simple to read the EGT live. Driving around the temp changes in response to throttle/load input (mostly between 500 & 650 deg C) & in my opinion looks normal.

 

Question - is my OBD2 gauge reading a working EGT sensor & there is a secondary one that has failed? If so, can anyone point me to where it might be because I can only find one (with the electonics box attached to the PS firewall).

 

Thanks,

Leon

 

My TTRS scan

001348 - Sensor 1 for Exhaust Temp Bank 1 (G235)

               P0544 - 001 - Circuit Malfunction - MIL ON

             Freeze Frame:

                    Fault Status: 11100001

                    Fault Priority: 2

                    Fault Frequency: 1

                    Mileage: 98336 km

                    Time Indication: 0

                    Date: 2023.12.04

                    Time: 11:53:44

 

             Freeze Frame:

                    RPM: 0 /min

                    Load: 0.0 %

                    Speed: 0.0 km/h

                    Temperature: 26.0°C

                    Temperature: 26.0°C

                    Absolute Pres.: 1000.0 mbar

                    Voltage: 12.319 V

Edited by AusTTRS, 09 March 2024 - 06:32 AM.