I had bumped one of the two hoses off when cleaning the t/b some time back and noticed it had a dodgy join in it that was indeed sucking air, but that was repaired before putting it back together, and months ago now.
New filter "again" and from what I have found the so called Xpert I respect reckons it's simply my driving habits, not my driving style, so that in the short distances I drive it's barely enough for the engine to get warm, thus the sensors are in a rich semi choke mode all the time with my small trips, and winter time is exagerating that, logical with the very good CAI I made meaning the intake sensors are telling the engine it's cold and feeding it more fuel, probably why it goes so well.
I'm going to waste half a tank and go for a decent drive and see if that's the reason it's doing it, I will admitt that I have shortened all my trips with the cost of fuel and both were about the same time.
There could well be merit in this theory as with the 40kms on the clock from two longer trips the guage has yet to even move from it's std overfull reading which is normal when full, I had deliberately driven it less making it never allow the sensors to reach a normal operating temperature and give it the appropriate amount of fuel/air.
With new O2 sensors at $89 "from supercheap" each I thought that wasting half a tank was a cheap test, besides the O2 sensors were removed and put on a meter, all appears to be fine.
The basics of what the Xpert "my bro that works for Toyota" said was that what I was doing would make it use twice the amount of fuel it would normally use, and that's about what it's doing.
Remember on a trip it went to as low as 7 lit/100kms, basically the same engine - CAI, same driver.
Add that to rather stale fuel which would be not even close to the RON # as when it was purchased may well be adding to the problem, longer trips and "for me" just fill it to half tank to keep it more fresh was the basic advice.
I know the benefits of using PULP from the boat which used more fuel in a day than some buy in a year with 2 X 400 lit fuel tanks, it used 600 + litres each time it went into the water, and fuel was only put in the day of the trip, the results compared to std unleaded was 1/3 less fuel, more power, and smoother running, but as we should know, it loses it's RON # much faster than std unleaded does so to switch over may only fix it in the first half dozen drives, the fuel may well be std unleaded from then on, unless I only fill to 1/3 tank and top it up often.
