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Excessive fuel consumption - 1994 BMW 3 Series

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Not enough information???????,replace air filter,fuel filter infact replace all filters and run a fuel cleaner through system,you dont tell me how many miles on engine i would need all the information to tell you a full system check.adrian,,,,

Posted on Aug 04, 2010

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Posted on Jan 02, 2017

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jim9813
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SOURCE: volvo s40 1.8 gdi excessive fuel consumption

You're going to have to figure out what's causing the misfire. The car is almost 10 years old, so change the plugs to start with. If you still have a misfire, go to auto zone and have them pull the codes to find out which cylinder is the issue. Then figure out fuel or spark? Coil or injector? Was there a lean code? Check for a vacuum leak. Change the fuel filter and air filter for maintanence. The cruise control may be another issue.

Posted on Aug 06, 2009

  • 543 Answers

SOURCE: excessive fuel consumption on 2.0 litre zetec

i would not consider that excessive,,,thats good,ALOT of MPG has to do with driving habits,,,also depends if the gas you are using has ethanol in it,that decreases gas miles but bruns better higher rating

Posted on Oct 13, 2009

  • 6 Answers

SOURCE: What could cause excessive fuel consumption

dirty air filter
bad plugs
low tire presure
bad plug wires
bad O2 sensor(major contributer)

Aftermarket parts can improve your feul economy ie: intake, exaust, plugs, wires, coil pack.

Posted on Dec 25, 2009

  • 196 Answers

SOURCE: GM Daewoo Kalos - Excessive fuel consumption 15L/100km

o2 sensor bad or ,dirty or clogged injectors hope this helps

Posted on May 09, 2010

  • 1 Answer

SOURCE: Lexus LS400 loss of power and excessive fuel

loss of power on a lexus ls400

Posted on Jun 27, 2010

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Causes of excessive fuel consumption


Hello, There are several causes for excessive fuel consumption . Dirty or clogged air filter, leaking gas hose or fuel lines, under inflated tires, wrong sized tires, excessive weight in the trunk, a heavy foot on the gas pedal are only a few.

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My Hyundai 1999 model CHECK ENGINE LIGHT IS ALWAYS ON AND THE FUEL CONSUMPTION IS HIGH.


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GM Daewoo Kalos - Excessive fuel consumption 15L/100km


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Excessive fuel consumption,no power on incline,


this could be an air intake problem, check the air filter but what ive seen before is the flexible intake pipe collopse only when the engine was under pressure as you describe.Try removing this pipe & driving again but not for long as dust would enter the engine .it might confirm or elimiate this.

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Uses excessive fuel


Brakes could be binding or hand bake cable holding on but you think youd smell burning brakes if that was the case!What condition is the oxy sensor in ,maybe carboned up and contaminated which can tell the engine management to supply more fuel than required.is the air filter air box in good condition and air box lid securely fastened.Should be sealed from air box to throttle body If the air filter is clogged and dirty that can lead to excess fuel consumption.Have you installed any injector cleaner in the fuel tank.cleans up dirty injectors thst can cause excess fuel consumption.

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