so bit of a update i have pushed the 4 runner fuel gauge where the needle sits under the first empty line and so far i have gotten a extra 86km out of it so thats a total of 486km to a tank with no indication of the 4wd wanting to run out of fuel

i have not driven the car for a week and when i went to start it the needle moved back up inline with the empty line if that makes sence so im really thinking about dropping the tank to tank the fuel sender out and maybe replacing the fuel sender and pump very soon

 

just wanting peoples advice on my 1991 toyota 4runner vzn130 v6 petrol with extractors and exhaust

i replaced everything new on it even the o2 sensor and im still getting 350km or 14.50L/100km

So i was under it tonight and looking around tested the o2 sensor it is within spec i was looking at the exhaust and wondered what if the o2 sensor was moved back because how i see it the o2 sensor is only running on 3 cylinders and its not seeing the other 3 cylinders and its not burning the right mixture because who ever made this exhaust does not know ˟˟˟˟

here is a ˟˟˟˟ty attempt with paint and a mouse of my exhaust