Results 1 to 12 of 12

Thread: Preferred PCM: 8625, 7427, or 6395

Threaded View

Previous Post Previous Post   Next Post Next Post
  1. 02-16-2018 #3
    57 Handyman
    57 Handyman is offline
    Fuel Injected!
    Join Date
    Jan 2013
    Age
    77
    Posts
    132
    Quote Originally Posted by 57 Handyman View Post
    I ask this question...
    After re-reading this post, I realized I forgot to state a separate question which was different from the one about PCM preferences. Is it really necessary to make/use an ECM-to-PCM adapter since most computers have a built-in limp home mode?

    Dave W, do you think it could be related to the processing speeds since both '7427 and '8625 run 50xs faster than the '7747? Are there any design differences in these 8192-baud PCMs, i.e., early vs later usage/deployment by GM? Lastly, in switching between '7427 and '8625, what kinds of changes regarding the bin/adx/xdf were required?
    Last edited by 57 Handyman; 02-16-2018 at 11:55 PM.
    Reply With Quote Reply With Quote
« amc 304 conversion | 1227747 to 16197427 Adapter Plug? »

Similar Threads

  1. 6395 7427 8625 Manual Trans Calibration Listing
    By 1project2many in forum GM EFI Systems
    Replies: 22
    Last Post: 03-28-2019, 02:54 PM
  2. 6395/7427 without drac
    By myburb in forum GM EFI Systems
    Replies: 5
    Last Post: 02-05-2016, 04:18 AM
  3. 6395/7427 PFI mode
    By myburb in forum GM EFI Systems
    Replies: 4
    Last Post: 09-05-2015, 06:33 AM
  4. Wanted , BBC '7427 / '6395 Memcals
    By Nasty-Z in forum Buy - Sell - Trade - Wanted
    Replies: 0
    Last Post: 11-04-2013, 05:13 AM
  5. 6395 pcm with 7.4L memcal, and 7427 with 5.7 memcal
    By JeepsAndGuns in forum Buy - Sell - Trade - Wanted
    Replies: 2
    Last Post: 05-24-2013, 02:41 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules