if they're not the same part number then they're not interchangeable.

 

I Had The Same Problem With My 91 ,
I Just Went To The JunkYard Pulled One From Another Celica Same Year as Mine And The Problem Went Away.
You Just Gotta Get The Censor From The Same Car As Yours.

 

Swapped snesors for the correct part. Everything seemed to be going well, the check engine light was still on from earlier but I drove the car this weekend and everything seemed good to go. Idle was around 1200 with AC on, no surging or funny behavior.
I fired up the car to come to work this afternoon and the shenanegans started all over, sort of. As soon as I pulled out of the driveway the car started missing and lurching. It did this everytime I would attemtpt to acellerate. The check engine light (which had previously gone out) started flashing and then stayed on. As soon as I had gone two or three blocks the missing and lurching stopped but the light is now on again.
The car seemed to run fine once the light came on. I dont have an OBD scan tool and I think Autozone only has the tool for OBD II so I have no idea what code it is throwing. I didnt touch anything else since replacing the sensor. Checked for vacuum leaks and checked for loose connections. WTF??

 

Genuine 5sfe map sensors include the bracket hence the different part numbers. The sensors are not matched to a specific model.

 

The cat started open loop when cold, ignoring sensors. When warm, it switches to close loop using sensor input. The engine light probably indicates a failed sensor. When sensor started throwing bad data, the ecu tried to correct thus the lurching. When the sensor failed (no data, and engine light), the ecu probably returned to open loop.

You can put the ecu into service mode using a jumper at the diagnostic port. It'll flash a code that will tell what the problem is.