List Of RPO Codes
 

These are for a 1990 Suburban but same as my 88 K5 and others Im sure. I looked forever, and finaly just paid for them...
Enjoy..

AA3-AR9 // AS1-BC1 // BC2-B4K
http://i43.photobucket.com/albums/e3...h_41878274.gifhttp://i43.photobucket.com/albums/e3...h_41878275.gifhttp://i43.photobucket.com/albums/e3...h_41878276.gif

B4M-CR3 // C45-C5J // C5K-C97
http://i43.photobucket.com/albums/e3...h_41878277.gifhttp://i43.photobucket.com/albums/e3...h_41878278.gifhttp://i43.photobucket.com/albums/e3...h_41878279.gif

DA0-D36 // D4L-E43 // E44-F58
http://i43.photobucket.com/albums/e3...h_41878280.gifhttp://i43.photobucket.com/albums/e3...h_41878281.gifhttp://i43.photobucket.com/albums/e3...h_41878282.gif

F59-JE5 // JF9-LL2 // LL4-MC0
http://i43.photobucket.com/albums/e3...h_41878283.gifhttp://i43.photobucket.com/albums/e3...h_41878284.gifhttp://i43.photobucket.com/albums/e3...h_41878285.gif

MC9-NC7 // NC8-N98 // N99-P42
http://i43.photobucket.com/albums/e3...h_41878286.gifhttp://i43.photobucket.com/albums/e3...h_41878287.gifhttp://i43.photobucket.com/albums/e3...h_41878288.gif

P43-QMT // QMV-T1U // T1X-UL1
http://i43.photobucket.com/albums/e3...h_41878289.gifhttp://i43.photobucket.com/albums/e3...h_41878290.gifhttp://i43.photobucket.com/albums/e3...h_41878291.gif

UL2-U11 // U12-VG8 // VG9-V46
http://i43.photobucket.com/albums/e3...h_41878292.gifhttp://i43.photobucket.com/albums/e3...h_41878293.gifhttp://i43.photobucket.com/albums/e3...h_41878294.gif

V50-YE2 // YE3-ZW6 // ZW9-05P
http://i43.photobucket.com/albums/e3...h_41878295.gifhttp://i43.photobucket.com/albums/e3...h_41878296.gifhttp://i43.photobucket.com/albums/e3...h_41878297.gif

06A-14B // 14C-20U // 202-33L
http://i43.photobucket.com/albums/e3...h_41878298.gifhttp://i43.photobucket.com/albums/e3...h_41878299.gifhttp://i43.photobucket.com/albums/e3...h_41878300.gif

33P-5A1 // 5A2-51A // 51C-6J6
http://i43.photobucket.com/albums/e3...h_41878301.gifhttp://i43.photobucket.com/albums/e3...h_41878302.gifhttp://i43.photobucket.com/albums/e3...h_41878303.gif

6K3-66U // 662-75U // 752-8M5
http://i43.photobucket.com/albums/e3...h_41878304.gifhttp://i43.photobucket.com/albums/e3...h_41878305.gifhttp://i43.photobucket.com/albums/e3...h_41878306.gif

8M7-9A5 // 9A7-91U // 92A-97U
http://i43.photobucket.com/albums/e3...h_41878307.gifhttp://i43.photobucket.com/albums/e3...h_41878308.gifhttp://i43.photobucket.com/albums/e3...h_41878309.gif

Any other How Tos or wiring diagrams you need let me know and I will get something together. I only have access to 90 Suburban, but should all be the same for this gen.

RE: List Of RPO Codes
 

I am not sure if the RPO decoder that s10-forums has works for these, but it probably does. I believe it works off of a master GM database of RPO codes...

Anyway, CLICK HERE for a fairly comprehensive list of RPO codes in a format that is a bit easier to read. I think I have a search-able PDF that is something like 188 pages long that is the true master RPO code list from GM somewhere on my home computer. The thing is huge though.

But thanks for the post! I put it into a bit better format for everyone to get through without using up your bandwidth (if you have a free photobucket account).