Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
My daihatsu mira 2014 model upstream O2 take two mins to give reading and crawls up to 0.9V whereas the downstream senor gives 0v most of time on idle. This happend just right after getting catalytic converter washed up. What could be the reason behind it
