Cutoff at low RPM during gentle acceleration - Yaris Verso 1.3 VVTi

[Bluevitz-rs]

It's an automatic I'm assuming from the video...

I'm wondering if it's a transmission problem of some kind.

[jackmilas]

Originally Posted by Bluevitz-rs

It's an automatic I'm assuming from the video...

I'm wondering if it's a transmission problem of some kind.

Can the transmission send "cut fuel" message to the ECU in those specific conditions?

- it happens only at a specific throttle position (even with throttle sensor disconnected)
- it happens only at low RPM range, around 1200-1400RPM
- it happens only when the cold engine warning goes out
- it happens at every gear

Today I'm replacing front O2 sensor and I'll report back if there has been any change. Some people say that 16 year old car with 140k kms will benefit from replacing O2 sensor in better fuel economy anyway. For some reason I am one of top Yaris Verso fuel consumers despite that I drive very economically: http://www.spritmonitor.de/en/detail/725585.html

The car is showing average fuel consumption at 6l/100kms (I reset it at each full tank) and in reality the car burns 8l/100kms. Perhaps both issues have the same root cause?