BA2 Turbo T56 Sedan ECU Reset

[clevo400]

Hey BAT gurus,

 

I reset the ECU by leaving the battery off for a few days and then plugged an ELM327 in and using Car Scanner with ignition on it scanned STFT B1 as 32.03% and STFT B2 as 32.03% and O2 Sensor 1 B2 as 1.28V.

 

I've attached the Screenshots. Are these readings right as the car is completely stock but uses 15L/100km City Cycle.

 

[hjtrbo]

You need to wait until the car is in fuel status = closed loop. Check again with the engine warm and a couple of minutes after starting. 15L city is not unheard of, she's 2 tonnes. 

[clevo400]

Thanks. Is 32% Fuel Trim normal after a battery reset. Seems excessive to me and explains the increased fuel.comsumption. Does it mean someone's tuned it to be richer.

[Puffwagon]

You don't understand the previous reply.

 

You need to wait until the car is warmed up to check the fuel trims. The number you saw last time was it adding fuel because the engine was cold.

 

You also have to wait about 40 seconds after starting it, even when it is warm, for it to be in closed loop.