The original throttle cable with the 2S is just too quick and does not get to the linkage for that ITB’s. I had a take a look at some aged Toyotas in the wrecking lawn and located one that may match from a 1989 SV21 Camry. It’s important to follow https://josuegyrpl.blogocial.com/5-easy-facts-about-4age-20v-itb-described-75121161