'93 Regal TPS problem

My car started dying when I would stop and would hardly accelerate. I pulled the codes and I got code 22 throttle position sensor. So I changed the sensor and it doesn't die anymore but now when I get on the highway it stays at 3K rpms at 70 and its suppose to be at 2K. Its like its not shifting into forth gear and when I let off the gas the rpms drop to 1K then jump back up to 3K. I still get the same code 22. Any Ideas? Oh and apparenly the sensor is non adjustable.

My car started dying when I would stop and would hardly accelerate. I pulled the codes and I got code 22 throttle position sensor. So I changed the sensor and it doesn't die anymore but now when I get on the highway it stays at 3K rpms at 70 and its suppose to be at 2K. Its like its not shifting into forth gear and when I let off the gas the rpms drop to 1K then jump back up to 3K. I still get the same code 22. Any Ideas? Oh and apparenly the sensor is non adjustable.

I think your tranny is on the way out. The 4th/overdrive gear is the first to fail in the 4t60E. The PCM recognizes that 4th gear isn't engaging and eventually tells it to downshift to 3rd. I had this happen to a PO 1995 Regal GS and it behaved the exact same way.

I just started placing the shifter into D to avoid the tranny hunting for 4th for a few seconds. I drove the car that way for about 5,000 miles before getting it fixed. It never left me stranded and I still managed 26 MPG hwy in third.