i am considering a poor mans itr in my 91 teg. i recently put a b16 in but it has a rod knock right now. so know i have been researching the "poor mans ITR". i am currently obd0 pr3. does the gsr block(b18c) have any sensors that are placed differently or has a sensor that b16 doesnt have and vice versa?

 

im sure someon else will have all the answer but i know that you need a o2 sensor (bung in the cat.) while our 90-91 jus had them in the header

 

well i would be stayin obd0 so i would only need the o2 sensors in the header.

 

the only thing i noticed when i did my sir1 head and sir2 block was the thermoswitch is on the block on sir1 but on obd-1s its on the thermostat housing.