Q: The check engine light is on, the car feels as if it will turn off while idling, gas smell

asked by on

My car has check engine light on. It sometimes feels like the car will turn off when it is at idle. Also, there is a gas smell inside of the vehicle. The gas mileage is bad as well. It goes around 25, depending on whether I drive on the highway or in the city. Could this be an issue with fuel injectors? Is it something else? Thank you.

Hi there. A gas smell such as this is a good indication that there is a fuel leak. If it is entering the vehicle, then it is typically under the hood. Most of the time on this vehicle it comes from a leaking fuel injector or fuel pressure regulator.

I would start by inspecting the injectors visually for any signs of leakage. If none is found, then the regulator should be checked. Being that the Check Engine Light is on, it would also be a good idea to scan for codes to see if it is points to a misfire on one or more cylinders which could tell you where to start. If you plan on having this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair these issues.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. The check engine light is on, the car feels as if it will turn off while idling, gas smell

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: 2010 Mini Cooper S - P0974 Trouble Code: Shift Solenoid A Control Circuit High

Hello - there are known issues with the valve body wearing out faster than should be normal on this transmission. I would check with a reputable transmission shop in your area for a rebuilt valve body. these are available with...

Q: Bank 1 running to rich and injector 1 contribution fault Intermittent.

Hi and thanks for contacting YourMechanic. What you are experiencing is a misfire detected in cylinder 1 and a random misfire in cylinder 3. This could be caused by either the fuel injectors not firing, the spark plugs fouling out,...

Q: AC smells really bad, what can I do?

Bad smells are not fun! It sounds to me like we may have a clogged A/C drain on our hands. When the air conditioner is being operated in your vehicle, just like ice water in a cold glass, condensation drops...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...