Skip the auto shop - Our mechanics make house calls

Q: Acts like out of gas.sputters dies then runs sputters and dies.gas in it fuel pump working smells like carbon,hot

asked by on

Acts like out of gas.sputters dies then runs sputters and dies.gas in it fuel pump working smells like carbon,hot
My car has an automatic transmission.

This may be a result of a faulty oxygen sensor. As you may know the oxygen sensors which are part of your emissions system read exhaust gases to determine whether or not the appropriate amount of oxygen is present in the exhaust. Based upon this reading, this information is relayed to the car’s ECU which then makes a determination as to whether or not to add more or less fuel to the engine. When too much or too little oxygen is present, this will cause check engine light to come on.

Too much oxygen may be present in the exhaust gas due to things like an exhaust leak, a vacuum leak, a faulty mass air flow sensor (causing a lean fuel condition) or faulty fuel injectors. To little oxygen may be present in the exhaust gas may be caused by things like a clogged air filter, a failing mass air flow sensor (causing too much fuel to be introduced to the motor), bad fuel injectors or a clogged catalytic converter. When the O2 sensor is not working properly, this will cause false readings to be relayed to the computer causing inaccurate adjustments to be made to the intake and fuel system in your engine. You may also notice a very strong smell of fuel. I would suggest having an expert from YourMechanic come to your home to diagnose your emissions system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Acts like out of gas.sputters dies then runs sputters and dies.gas in it fuel pump working smells like carbon,hot

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Gauges not working when starting car, eventually it goes back to normal

Hello. It is possible for low battery voltage to cause this problem. It is also possible that this problem is being caused by bad instrument cluster wiring, or a problem in your main fuse box. ...

Q: Bad alternator drained battery

It is possible that your alternator has failed. This is not an uncommon cause for your concern. Have you looked under your hood to make sure that the serpentine belt did not break? I would ask for help from one...

Q: Small engine fire, Put out w antifreeze.

I would recommend letting the vehicle cool completely and then wash off oil with soapy water and a soft brush and rinse real good with low pressure water. Let vehicle dry and then you should be able to start and...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.