Hi all As always having this trouble with my avensis with lack of power and hesitance Long story short, i bought a cheap obdii reader on ebay (vgate 890) works perfectly for the check engine light, but this gizmo does live readings. Such as voltage on the o2 sensors, manifold pressure, my rpm, remaining miles and other things. Is there somewhere a website, a free download or a kind email to me, about the correct live values for the car. Made up, i have a voltage on a o2 sensor of 0.600v on tickover. is that good, bad, or average that drops for no reason to 0.055v I just need like a big list of what the maximum and minimum tolerances are for the live data streams f there is a such a thing.. Thanks all p,s if i find out the voltage is pants on the o2 sensor, deffinately being replace