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Smog Check Hell 200 1984

posted by machine man on Tue Oct 14 20:38 CST 2014
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last visit: Wed Oct 22 15:40 CST 2014

[RELATED]

Your not way off base you are just standing next to it! 😀. Here is my two cents and I know you might send me back some change!

The AMM tells the ECU that certain amount of air is coming in in term of total air mass. At this point the AMM is done.

The reading it makes IS sent to the ECU. It is then matched up to a program within the ECU to what lab technicians figured to be ideal combustion mixture and spark timing.

The O2 sensor tells the ECU if it's fuel pluses are on target. This is needed because fuel pressure/ or volumes change due to the fuel pressure regulator.
The regulator is in the system to vary things to make up for some of the variables that happen outside of the control of electronics.

Tack on Environmental changes, mechanical changes (air leaks) along with the antics of a humans anixeities on the gas pedal, are just a few things to retuned!

The O2 sensor(s) is an important link to a self tuning engine management system. Sample times are pretty fast and have gotten even faster on some newer cars to monitor even more sensors!

I don't know who leads the pack but I like saying its BMW, as it might mean, Bring More Wages at scheduled maintaince times or for repairs? 😉

Phil

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Smog Check Hell [200][1984]
posted by Dick Slessig on Mon Oct 6 18:23 CST 2014 >

Smog Check Hell [200][1984]
posted by Trev29 on Tue Oct 7 05:05 CST 2014 > V
- Seafoam/Water Torture [200][1984]
  posted by 1908242DLa on Tue Oct 7 08:19 CST 2014 > V
  - Seafoam/Water Torture [200][1984]
    posted by Dick Slessig on Tue Oct 7 09:33 CST 2014 > V
    - Seafoam/Water Torture [200][1984]
      posted by Volvodad subscriber on Wed Oct 8 19:53 CST 2014 > V
- Smog Check Hell [200][1984]
  posted by Dick Slessig on Tue Oct 7 09:34 CST 2014 > V
  - Smog Check Hell [200][1984]
    posted by oldyellr on Tue Oct 7 09:47 CST 2014 > V
    - Smog Check Hell [200][1984]
      posted by Dick Slessig on Tue Oct 7 19:09 CST 2014 > V
      - Smog Check Hell [200][1984]
        posted by oldyellr on Wed Oct 8 07:36 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by Dick Slessig on Wed Oct 8 08:14 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by oldyellr on Wed Oct 8 09:12 CST 2014 > V
    - Smog Check Hell [200][1984]
      posted by Trev29 on Wed Oct 8 05:39 CST 2014 > V
    - Smog Check Hell [200][1984]
      posted by someone claiming to be oldduke on Wed Oct 8 06:29 CST 2014 > V
      - Smog Check Hell [200][1984]
        posted by oldyellr on Wed Oct 8 07:40 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by Onkel Udo II subscriber on Wed Oct 8 08:59 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by oldyellr on Wed Oct 8 09:39 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by Onkel Udo II subscriber on Fri Oct 10 06:38 CST 2014 > V
      - Smog Check Hell [200][1984]
        posted by oldyellr on Wed Oct 8 07:43 CST 2014 > V

Have You Adjusted The AMM Yet? [200][1984]
posted by Tatra Mike on Wed Oct 8 06:34 CST 2014 > V
- Have You Adjusted The AMM Yet? [200][1984]
  posted by Dick Slessig on Wed Oct 8 08:11 CST 2014 > V
  - Cause Of Lean Mixture [200][1984]
    posted by Tatra Mike on Wed Oct 8 15:31 CST 2014 > V
    - Cause Of Lean Mixture [200][1984]
      posted by Dick Slessig on Thu Oct 9 08:37 CST 2014 > V
    - Washington State doesn't test 240's? [200][1984]
      posted by Ken C subscriber on Thu Oct 9 10:53 CST 2014 > V
      - Ah...Nevermind [200][1984]
        posted by Tatra Mike on Thu Oct 9 20:04 CST 2014 > V
        
        Aah, that's what I thought ... [200][1984]
        posted by Ken C subscriber on Thu Oct 9 22:54 CST 2014 > V
      - Washington State doesn't test 240's? [200][1984]
        posted by someone claiming to be CB on Fri Oct 10 17:57 CST 2014 > V

Smog Check Hell [200][1984]
posted by Dick Slessig on Mon Oct 13 13:24 CST 2014 > V
- Smog Check Hell [200][1984]
  posted by Trev29 on Tue Oct 14 05:31 CST 2014 > V
  - Smog Check Hell [200][1984]
    posted by Dick Slessig on Tue Oct 14 09:14 CST 2014 > V
    - Smog Check Hell [200][1984]
      posted by Onkel Udo II subscriber on Tue Oct 14 09:47 CST 2014 > V
      - Smog Check Hell [200][1984]
        posted by Dick Slessig on Tue Oct 14 19:50 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by machine man subscriber on Tue Oct 14 20:38 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by someone claiming to be CB on Wed Oct 15 15:39 CST 2014 > V
        
        Smog Check Hell [200][1984]
        posted by Dick Slessig on Wed Oct 15 20:24 CST 2014 > V
        
        Here's one from the attic... [200][1984]
        posted by lucid subscriber on Thu Oct 16 07:15 CST 2014 > V
        
        Here's one from the attic... [200][1984]
        posted by Dick Slessig on Thu Oct 16 09:07 CST 2014 > V
        
        Here's one from the attic, including copy of 2002 post re NOx and Volvo Chrysler system [200][1984]
        posted by lucid subscriber on Thu Oct 16 10:07 CST 2014 > V
        
        So is the suggestion ... [200][1984]
        posted by Trev29 on Fri Oct 17 06:04 CST 2014 > V
        
        So is the suggestion ... [200][1984]
        posted by lucid subscriber on Fri Oct 17 06:35 CST 2014 > V
        
        So is the suggestion ... [200][1984]
        posted by someone claiming to be CB on Fri Oct 17 16:03 CST 2014 > V
        
        So is the suggestion ... [200][1984]
        posted by Dick Slessig on Sat Oct 18 11:33 CST 2014 > V

Luckier here in North Texas... [200][1984]
posted by It Rolls on Tue Oct 14 22:18 CST 2014 > V

Smog Check Hell [200][1984]
posted by kvetoslav on Sun Oct 19 17:46 CST 2014 > V
- Smog Check Hell [200][1984]
  posted by Dick Slessig on Mon Oct 20 19:09 CST 2014 > V

Smog Check Hell [200][1984]
posted by Dick Slessig on Fri Oct 31 23:09 CST 2014 > V
- Smog Check Hell [200][1984]
  posted by Onkel Udo II subscriber on Sat Nov 1 03:48 CST 2014 > V
  - Smog Check Hell [200][1984]
    posted by someone claiming to be oldduke on Sat Nov 1 07:38 CST 2014 > V

Air Mass Meters of Dubious Quality [200][1984]
posted by John McPhail on Sun Nov 2 09:34 CST 2014 > V

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Smog Check Hell 200 1984