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Posted on May 21, 2009
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Car will start but dies when pressing the gas pedal

What could be the problem

2 Answers

Anonymous

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  • Expert 36 Answers
  • Posted on May 21, 2009
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It sounds like you have an issue with something in your air/fuel mixture electronics. This could be something in your throttle body, mas air flow sensor, or even an oxygen sensor. When your car is idling the air/fuel mixture is acceptable for the engine to run. When you press on the gas either too much gas is dumped in the engine or too little. If you look at your exhaust pipe you may notice a heavy built up of black soot. This would indicate that your vehicle is running extremely rich (too much gas), if your exhaust is very white then your vehicle is running lean (too little gas). The smell of the exhaust can also tell you something about how the engine is running. If it smells sweet it is running rich. I hope this helps and please don't forget to rate me.

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  • Master 2,004 Answers
  • Posted on May 21, 2009
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This is a fuel pump related problem.

  • mitchell fitzhenry
    mitchell fitzhenry Mar 26, 2022

    I have put 2 fuel pumps in Car starts perfect Fuel is up to high pressure pumps, but the high pressure pumps are not putting out fuel

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I suggest you few helk links.Click the link below and follow its troubleshooting procedure:------------------Pushing on the gas pedal, but the car slows down? Gas pedal to the floor and the car slows down? http://technoanswers.blogspot.in/2012/02/pushing-on-gas-pedal-but-car-slows-down.html
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There are few troubleshooting steps to confirm the problem.I suggest you few help links,with complete troubleshooting and solution for these types of issues.

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http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

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For this problem, i suggest you to go through this help links.Click the link below to go through the troubleshooting procedure :----Car Idles rough and quits when gas pedal is pressed less? http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html-----------Car only starts when gas pedal is pressed? http://technoanswers.blogspot.com/2012/01/car-only-starts-when-gas-pedal-is.html
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---------Car dies when gas pedal is pressed? http://schematicsdiagram.blogspot.com/2011/12/car-dies-when-gas-pedal-is-pressed.html
------------Pushing on the gas pedal, but the car slows down? Gas pedal to the floor and the car slows down? http://technoanswers.blogspot.in/2012/02/pushing-on-gas-pedal-but-car-slows-down.html
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For this types of problem,there are few help links.I suggest you to click the link below and go through the troubleshooting procedure :-----Car only starts when gas pedal is pressed? http://technoanswers.blogspot.com/2012/01/car-only-starts-when-gas-pedal-is.html-----------Car won't start without hitting the gas pedal? http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-without-hitting-gas.html
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