P0544: EGT or 02 sensors or both?

[johnshenry]

'04 Jetta, 120k miles, throwing this code often now. No other codes, no perceived performance problems. I plan on keeping this car for a while yet.

Should I just replace the EGT sensor? Or the 02s? Or both? Not much found on this code/repair here or on the web.

TIA.

JH

[Anony00GT]

That's an EGT code.

Disconnect the EGT and measure the voltage between the connector pins on the harness side with the key on. If you've got ~5v, replace the EGT sensor. If no voltage, find the wiring problem on the car side.