hecktikbro-mcv36r

Well i've reset the ecu three times, everytime i reset the ECU and try driving normal it gives me great consumption till about half a tank. Then for some weird reason it seems to go back into the 16/17L per 100km. My mate used the OBD and said the o2 sensors seemed fine but I'm not convinced. Maybe worth it to try running fuel injector cleaner again?? I really am stuck with this issue, i drive quite a lot and this is really burning a hole in my pocket, i use Standard unleaded but every so often i fill up with the premium to keep it clean.

I've calculated consumption both by the onboard computer and comparing fill ups, because it's been happening for about 6 months now. so you think the o2 sensor ? anyway to check this, will an OBD be able to determine if the sensor is not working properly?

Hi, Im quite new to the forums here. I've got a 2005 MCV36R Toyota Camry Ateva now my fuel economy is around 17.8L/100km = Pretty crazy i think for a camry, either im a crazy driver or theres something wrong. I've tried fuel injector cleaners a few time ran the engine out all the way with the stuff, didn't really impact it. Any other ideas to what it could be? Regards John