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Volvo 940 230fd and little bit too high fuel consumption 900 1992

posted by volvomies on Wed Dec 2 10:48 CST 2020
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Hello

I have 1992 940 230fd + automatic.

Ive owned this car about 6 months now. First months consumption was about 24mpg / 9.5 liters per 100km. That was highway and city 70/30.

After that it has been going to worser. Now its about 19.6 mpg / 12 liters per 100km and same driving style and routes. Even 100% highway mpg was 24. I had 940 with same technic 5 years ago and it took 30mpg highway.

Brakes are ok, allmost all new, plugs, wires, rotor, o2 sensor, air filter etc new. Car has idled, started and drived good all the time it just rises consumption. No header or exhaust pipe leaks also, i cleaned maf which was already clean. Pulsair valves were fault but blocking that no effect. No vacuum leaks and also new intake manifold gasket just for fun

No fault codes, automatic works great and tcc also.

Thermostat is new and works, i have new ecu temp sensor at garage but replaced yet because no symptoms for that either

Im very astonished what is going on????

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Volvo 940 230fd and little bit too high fuel consumption [900][1992]
posted by volvomies on Wed Dec 2 10:48 CST 2020 >

Volvo 940 230fd and little bit too high fuel consumption [900][1992]
posted by Amarin on Wed Dec 2 12:26 CST 2020 > V

Volvo 940 230fd and little bit too high fuel consumption [900][1992]
posted by Nahtanha on Thu Dec 3 07:18 CST 2020 > V
- Volvo 940 230fd and little bit too high fuel consumption [900][1992]
  posted by volvomies on Thu Dec 3 09:46 CST 2020 > V

Volvo 940 230fd and little bit too high fuel consumption [900][1992]
posted by spook on Thu Dec 3 10:00 CST 2020 > V
- Volvo 940 230fd and little bit too high fuel consumption [900][1992]
  posted by volvomies on Thu Dec 3 10:25 CST 2020 > V
  - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
    posted by spook on Thu Dec 3 10:47 CST 2020 > V
    - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
      posted by volvomies on Thu Dec 3 14:04 CST 2020 > V
      - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Nahtanha on Thu Dec 3 14:26 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Thu Dec 3 21:29 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Sat Dec 5 05:06 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Nahtanha on Sat Dec 5 13:53 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Sat Dec 5 13:56 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by jwalker on Sun Dec 6 06:35 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Sun Dec 6 12:34 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Blindboy subscriber on Sun Dec 6 19:13 CST 2020 > V
      - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by maplebones on Thu Dec 3 15:18 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by spook on Thu Dec 3 20:31 CST 2020 > V

Volvo 940 230fd and little bit too high fuel consumption [900][1992]
posted by Blindboy subscriber on Sat Dec 5 16:45 CST 2020 > V
- Volvo 940 230fd and little bit too high fuel consumption [900][1992]
  posted by volvomies on Sun Dec 6 05:57 CST 2020 > V

Volvo 940 230fd and little bit too high fuel consumption [900][1992]
posted by kittysgreyvolvo subscriber on Sun Dec 6 11:36 CST 2020 > V
- Volvo 940 230fd and little bit too high fuel consumption [900][1992]
  posted by volvomies on Sun Dec 6 12:33 CST 2020 > V
  - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
    posted by kittysgreyvolvo subscriber on Fri Dec 11 07:04 CST 2020 > V
    - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
      posted by volvomies on Fri Dec 11 07:09 CST 2020 > V
      - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by kittysgreyvolvo subscriber on Sun Dec 13 13:16 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Mon Dec 14 08:00 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Mon Dec 14 08:00 CST 2020 > V

Volvo 940 230fd and little bit too high fuel consumption [900][1992]
posted by volvomies on Mon Dec 7 11:02 CST 2020 > V
- Volvo 940 230fd and little bit too high fuel consumption [900][1992]
  posted by Nahtanha on Mon Dec 7 11:44 CST 2020 > V
  - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
    posted by volvomies on Mon Dec 7 11:46 CST 2020 > V
    - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
      posted by volvomies on Mon Dec 7 12:32 CST 2020 > V
      - Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by spook on Mon Dec 7 19:25 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Mon Dec 7 21:35 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Tue Dec 8 07:36 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Tue Dec 8 09:54 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Tue Dec 8 09:58 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Wed Dec 9 07:17 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by spook on Wed Dec 9 12:47 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Wed Dec 9 21:38 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by spook on Thu Dec 10 09:44 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Thu Dec 10 07:14 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by spook on Thu Dec 10 09:35 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Nahtanha on Thu Dec 10 11:35 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Grey245 on Thu Dec 10 13:44 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Grey245 on Fri Dec 11 02:44 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Fri Dec 11 03:40 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Fri Dec 11 03:41 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Fri Dec 11 03:40 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by spook on Fri Dec 11 09:10 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Sat Dec 12 00:29 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Grey245 on Sat Dec 12 05:26 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Sat Dec 12 05:38 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Grey245 on Sat Dec 12 06:28 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Sat Dec 12 08:11 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by Grey245 on Sat Dec 12 08:58 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by volvomies on Sat Dec 12 09:05 CST 2020 > V
        
        Volvo 940 230fd and little bit too high fuel consumption [900][1992]
        posted by jwalker on Sat Dec 12 09:56 CST 2020 > V

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Volvo 940 230fd and little bit too high fuel consumption 900 1992