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My 1997 VW Golf 3 is over-consuming fuel, I use 10 liters for 45km,

  1. My mechanic ask me to change the automatic gear-box because it is not selecting gear above gear 3
  2. I change the automatic gear-box but the issue is still there
  3. I change the plugs too, they are functioning well now
  4. My car is either carbureted or fuel injected, I don't know, please help me
  5. Is there any need to use car scanner to detect the fault!
DucatiKiller
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kossi
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2 Answers2

2

High fuel consumption can be caused by various reasons. The most common ones are:

  • Spark plugs, spark leads and coil pack. (You done spark plugs but you might need to check the other two too)
  • Blocked air cleaner
  • Sometimes might be even the brakes causing high fuel consumption by binding. You can check that by lifting the car up and check if the wheels are moving freely when you don't apply the brake.
  • Check also your tire pressure.
  • Faulty O2 sensor (This one, along with some other sensors are better to be checked with the OBD Scanner in order to be sure if they are faulty)

If you check all those one by one I'm sure you will find the source of the problem.

Alimba
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You definitely need to get the car scanned at a dealer (Audi or VW) or find someone in your local area that has VCDS (Ross Tech scan tool) and scan the entire car's diagnostics.

It's complete guesswork until that has been done.

Steve Oakes
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