1984 SE, 2.5L. I replaced the TPS sensor because I was getting an error code (22) and low voltage warning. I was also getting a rich fuel notification. I got this info from the scan tool I purchased from the Fiero Store. I thought the TPS sensor was supposed to have slots for the screws so it could be adjusted. The one I took off and the one I purchased from Autozone did not have slots.

I am now getting a MAP sensor error code and low voltage warning since I have replaced the TPS sensor. I checked my vacuum lines and they are hooked up correctly. Any ideas!!! Will the Fiero Store TPS have slots? The original problem (besides getting an error code) was hesitation and engine cutting out. It was still drivable, but I new it had issues.

If the TPS doesn't have slots to adjust it, you can "cheat" by bending the little metal tab. Use needle-nose pliers, and be very careful. You shouldn't need to bend it much. And it's easy to ruin the little metal arm, if you're not careful.