rich

Hey all, long time lurker, first time poster. I have a 1985 4Runner and have been having issues with it running a bit rough off and on for a bit now. I’m down here in Baja and don’t have a mechanic I trust and also appreciate doing as much as I can myself and enjoy learning, so trying my best...

Hello all. Continuing in my 80 series resto- Have codes 25, 26, and 71. Running lean, running rich, and EGR System. It’s worth noting the vehicle is running fine over all- no noticeable issues. Any advice on where to start?