Just installed a b20b in my teg. I was impressed by the performance, but the idle was all over the place. From 2000 rpm-300rpm. It even felt like it was going to shut off. The only things I changed for the swap were; b16a1 injectors, b18b distributor. This was necessary to keep the obdo wiring. I changed the throttle body back to the b18 and noticed a good improvement, but lost all the power. I think it is a tps problem with the b20 throttle body, but i’m not sure. any help would be great.
thanks