...this time trying to locate one on NA engine. It's NOT on the front of the engine, I suspect one on the right side of engine, just under inlet manifold, but i'm just not sure how many wires should go into it - 1 or 2. Is it quite big sensor with 2 wires sitting just under first front inlet manifold pipe?
Jola's NA is running quite rich and doing around 15mpg. I did exchange O2 sensors from known, well running engine and fuel consumption did not change, so I suspect coolant temp sensor now. Are there any other hints, why she would start drinking fuel like TT? Engine is going smooth, just very thirsty.