I have a 1991 4runner that has a fresh swapped 22re in it thats running really rich. I changed injectors, tps, iacv, afm, and 02 sensor. My issue that im having is the truck was heavily modded before i got my hand on it. I looked at the 02 sensor and noitce that the second sensor has been cut and converted to single 02. The previous motor was also a 22r block converted to efi and the ecu is a performance ecu. I have another stock ecu that i switched out but i think its another older model truck. i did paper clip trick and its flash code 5. Can someone point me in the right direction in figuring out how to convert it back to dual 02 sensor(if that will fix it). A part of me thinks that it could be the ECU as well because prior to me changing some stuff it was giving me codes 7 and 11. Any way much help would be appreciated.

 

Well i went out to mess with the afm. I unplugged it while running and plugged it back in and now im getting codes 2 5 8. How bad did i mess up just now?

 

Okay i think i found the issue. The ecu is diffrent from whats supposed to be in my truck. Can some one help me track down the correct part number or what with fit it ? its 1991 22re 4x4 5peed

 

Holy cow its hard to find the correct ECM