im installing an air fuel ratio gauge, and i have read that pin 29 and 49 should be used.
What colour wires are 29 and 49?

I have an EL xr6, am i correct by using pins 29 and 49

thanks people

Pull out your ECU with the plug still attached and read the numbers on the top of the plug. Look at the colour of the wire in each numbered socket until you answer your own question. Should take only 5 minutes.