If the Lambda relay was bad the Lambda would not work at all. Poor acceleration when hot could be a lot of things. Start with a tune-up after making sure the brakes aren't dragging. You may have to have the mixture screw adjusted. Vacuum leaks can also cause this. So can a plugged up catalytic converter (which can happen from a bad O2 sensor). I would check the mechanical and vacuum advance. Try a tank of Premium octane fuel. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, Travis Goodwin <tgoodwin@xxxx> wrote: > Alright, thanks to John H I got a new O2 sensor in place and a lot of my > warm engine sluggishness disappeared, but there is still a hint of it. Once