I installed a brand new O2 sensor in my truck a few months and my gas mileage has been very inconsistent and usually less than before the install. I replace the origanal Toyota/Denso O2 sensor with a Denso O2 sensor that is intended for a Pickup with a Cal. emissions system. I am pretty sure that this is my problem area, but I thought I would ask around first.
Also I am wondering the best way to thoroughly clean my intake plenum and throttle body. Also has any one ever cleaned out there EGR system.
If so does this help. I know that this is where that black crap comes from in the intake system.
Thanks for the help.
I had a bad o2 sensor last summer.. I just put some lucas injector cleaner in the tank and went for a long drive..( about 6,000KM) no porblem since.. The lucas make a good way to clean the fuel/ injector , intake/combustion, and exhust system.. Don't forget to change your plugs.. I use the copper cheap( read un-expensive Hot ) ones in the winter to help build heat, and Platlum in the summer when I have no trouble getting the engine warmed up. Don't worry about how much lucas to put in the tank, you can't put too much in. I like to have a MT tank, pour the lucas in and then fill to tank, and go for a good drive.. It don't hurt to use some hi-test gas and drive it like you stole it
just don't over do it
