Any ideas on this one? My car runs ok when warmed up except for a lack of power ( it is an automatic) that I am pretty certain is the lambda circuit (it is dead per some professional advice). When cold, it hesitates when you step on the gas until warmed up. I was checking the relays and pulled the Main Fuel relay along with the H.R.W. Timer relay, A/C Illumination relay and the Start Inhibit relay. Put them all back in their proper place and now the car runs terrible. Started it when cold and the car hovered around 500 rpm and every time I stepped on the gas it almost stalled out unless I punched the accelerator (much worse then my usual experience). Any thoughts on how I screwed this up?? I think I should stick to just putting gas in it and leave it at that. Mark