Welcome to the world of Saab ! Register
Page 2 of 2 FirstFirst 12
Results 11 to 12 of 12
  1. #11
    Saab Nut
    Join Date
    10 Apr 2017
    Location
    Denham, England
    Posts
    310
    Saab(s)
    2011 2.0 9-5 Aero
    Thumbs Up:   44
    Quote Originally Posted by quake4 View Post
    I'm glad you solve the "problem" Steno. Reading the comments and how I have a 9-5, I'll throw my computer in the trash. From now on, all problems will be solved without a computer Jijijijij
    I think you have misunderstood the comment. If you know how something works, in detail, and what happens when it doesn't, you can often get to the cause of a problem more quickly than with an OBD2 reader and a diagnostic computer. I spent 45 years in aviation, specifically avionics, and often the information from the central computers was, at best, a guide to where to start looking. Sure there are some things that can be detected by the computers before the fault has any practical effect, great as long as you have a plan to deal with the problem. However, when something has failed to the extent that there are symptoms, as in this case,the computer is only going to tell you what good system knowledge has already told you (its a vacuum fault). The computer can't tell you where in the vacuum system the fault is located so you have to use hands, ears and eyes.

    I have seen problems indicated by diagnostic system where the real fault has been in an entirely different system. I can't put 45 years experience into one post, or even a book, but I can tell you that absolute reliance on what the computer says can lead you in completely the wrong direction. OBD2 is an aid to fault finding, just as Sat Nav is an aid to navigation, follow either unquestioningly and you will regret it.

    0 Not allowed!

  2. #12
    Saab Fan
    Join Date
    19 Mar 2019
    Location
    Espaņa
    Posts
    25
    Saab(s)
    9-5 2.3t sw 185cv 2003
    Thumbs Up:   1
    Quote Originally Posted by GeoffR View Post
    I think you have misunderstood the comment. If you know how something works, in detail, and what happens when it doesn't, you can often get to the cause of a problem more quickly than with an OBD2 reader and a diagnostic computer. I spent 45 years in aviation, specifically avionics, and often the information from the central computers was, at best, a guide to where to start looking. Sure there are some things that can be detected by the computers before the fault has any practical effect, great as long as you have a plan to deal with the problem. However, when something has failed to the extent that there are symptoms, as in this case,the computer is only going to tell you what good system knowledge has already told you (its a vacuum fault). The computer can't tell you where in the vacuum system the fault is located so you have to use hands, ears and eyes.

    I have seen problems indicated by diagnostic system where the real fault has been in an entirely different system. I can't put 45 years experience into one post, or even a book, but I can tell you that absolute reliance on what the computer says can lead you in completely the wrong direction. OBD2 is an aid to fault finding, just as Sat Nav is an aid to navigation, follow either unquestioningly and you will regret it.
    I do not have to repent of anything. Follow your path as an aeronautic "expert" that I will follow as a simple Saab fan. I do not need it.do not even mention to you

    0 Not allowed!
    Last edited by quake4; 2 Weeks Ago at 17:24.

 

 

Similar Threads

  1. Steering vibration under braking
    By taxelrod in forum Saab 9-3 (2003-2014)
    Replies: 0
    Last Post: 07 May 2019, 03:16
  2. vibrations at idling
    By dimebag in forum Saab 9-3 (2003-2014)
    Replies: 2
    Last Post: 14 August 2018, 08:47
  3. Replies: 10
    Last Post: 27 July 2017, 14:50
  4. No braking power / loose brake pedal
    By Naizz in forum Saab 9-5 (1998-2009)
    Replies: 16
    Last Post: 28 June 2017, 20:40
  5. Engine Braking w/ignition off
    By nuclear944 in forum Tech Talk
    Replies: 9
    Last Post: 08 February 2012, 01:16

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT. The time now is 06:29.
Powered by vBulletin® Version 4.2.5
Copyright © 2019 vBulletin Solutions Inc. All rights reserved.