These are the explained RPO codes for my 1988 Fiero....I have been able to find all the codes:

  1. AAA - Addtional Standard Equipment
  2. AD3 - Window, Hinged Roof
  3. AF9 - Seat, Frt Bkt, Pass Driver, Recl, Outside Vender
  4. AU3 - Lock Control, Side DR, Electric
  5. B34 - Covering, Frt Floor Mats, Carpeted Insert
  6. C49 - Defogger, RR Window, Electric
  7. C60 - HVAC System, Air Conditioner, Frt Man Controls
  8. DG7 - Mirror, O/S, LH + RH, REM Control, Electric, Painted
  9. D34 - Mirror I/S, Sunshade
  10. D4P - Gear, Speedo Driven
  11. D80 - Spoiler, RR End Panel
  12. D9C - Sensor, Veh Speed
  13. E5Z - Speedo Adapter Delete (Analog Gage Cluster Only)
  14. E9Z - Speedo, Gearless Keys
  15. GX3 - Ratio, Transaxle Final Drive 3.33
  16. K34 - Cruise Control, Automatic, Electronic
  17. K60 - Generator, 100 Amp
  18. L44 - Engine, Gas, 6 Cyl, 2.8L, MFI Y6, H.O.
  19. MD9 - Transmittion, Auto 3 SPD, THU 125 Clutch
  20. MX1 - Merchandised, Trans, Auto Provisions
  21. NA5 - Emssion System, Federal, Tier O
  22. NP5 - Steering Wheel, Leather Wrapped
  23. PB4 - Lock Control, Wheel
  24. PH0 - Wheel 15x6 Frt, 15x7 RR, Alumnum
  25. PON - Pontiac Plant
  26. UQ6 - Speaker System, 5, Dual, I/P, Sail MTD Coax
  27. UX1 - Graphic Equilizer,Cass w/Search&Repeat,AM Stereo,FM Stereo,Seek&Scan,Digital Clock
  28. VK3 - Licence Plate, Frt Mounting Pkg
  29. V73 - Plate Inscription (Vehicle Statement USA/Canada)
  30. XEM - Tires Goodyear GT+4 P205/60R15 PSW Stl Front
  31. YLM - 215/60R15 BSW STL (Rear) W/XEM
  32. YT1 - Build Up DR & QTR
  33. 1SA - Option Group 1
  34. 41U - Primary Color (Black)
  35. 6RD - Driver's Side Front Spring Rate
  36. 60P - 15' Diamond Spoke Wheels, Gold (88GT)
  37. 66D - Trim Combination, Cloth, Med Beechwood
  38. 66I - Interior Trim, Med Beechwood
  39. 669 - Seat Belt color Med Beechwood
  40. 7RD - Passenger's Side Front Spring Rate
  41. 8UD - Driver's Side Rear Spring Rate
  42. 9UD - Passenger's Side Rear Spring Rate

I'd like to thank the Turbo Regal Web Site and the Michigan Fiero Club for the research for these listings.

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