Q: Idle problems when stopped. Car stops running. 4WD and Check engine lights on and solid. Gas cap tightened to verify

asked by on

I drove 180miles one way for work yesterday. About 50 miles after a gas fill, my check engine light came on along with 4WD and possibly another light, all solid. I checked the gas cap and verified it was tight. Lights still didn't go off after another 180 miles. Today, I stopped for gas again and when I went to start the car, the idle was low and it shut off. Took a couple of times to restart, but worked fine as long as I was giving it gas. Next time I stopped, no idle problems. Restarted after about an hour of being off and it didn't have any problems starting but the lights are still on. Tried fuel injector cleaner as well, but have only driven about 5 miles since used.

My car has 89000 miles.
My car has an automatic transmission.

What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays vital information to the ECM which uses this to make adjustments to fuel supply to the motor. A dirty or faulty sensor can cause an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This type of inconsistent fuel supply to the motor may cause a hesitation, loss of power, a jerking reaction, potentially a bit of black exhaust smoke and typically a strong smell of fuel when this sensor is malfunctioning. I would suggest having a professional from Your Mechanic come to your home to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Idle problems when stopped. Car stops running. 4WD and Check engine lights on and solid. Gas cap tightened to verify

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: Rav4 sluggish to accelrate AND jerks at the point of selcting gear on attaining obver 30km/h

I would suggest checking the throttle position sensor as this is often times the problem with jerking and hesitation. The throttle position sensor monitors the position of your foot on the gas pedal and relays this info to the car's...

Q: Q: Do I need a new alternator?

Hi, thanks for writing in. I'd be happy to provide my insight. This kind of problem may be caused by the alternator not charging at all. The charging system should be tested and checked first to make sure a fuse...

Q: What side is bank2 on a Infiniti G25 year 2012

Hi There, Bank 2 is the side of the motor on the driver's side of the car. If you need additional help with this, please feel free to reach out to us here at YourMechanic as we are always here...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.