clevo400 Member 33 Member For: 13y 9m 21d Gender: Male Location: Townsville Posted 18/06/23 01:27 PM Share Posted 18/06/23 01:27 PM 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. Link to comment Share on other sites More sharing options...
hjtrbo Bronze Donating Members 320 Member For: 13y 9m 25d Posted 18/06/23 07:41 PM Share Posted 18/06/23 07:41 PM 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. Link to comment Share on other sites More sharing options...
clevo400 Member 33 Member For: 13y 9m 21d Gender: Male Location: Townsville Posted 26/09/23 04:32 PM Author Share Posted 26/09/23 04:32 PM 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. Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,854 Member For: 9y 9m 15d Gender: Male Location: South Australia Posted 27/09/23 12:48 AM Share Posted 27/09/23 12:48 AM 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. Link to comment Share on other sites More sharing options...
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