Q: Q: Check Engine light is coming on

asked by on

My Check Engine light is in. I have had this problem in the past and it is always the mass air flow sensor. It tends to come on when I am on the freeway going about 80 MPH and hit the gas hard to pass. I don't really see any difference in performance whether the light is on or not.

The problem may not be the Mass Air Flow or MAF. It could be an unmetered air leak, such as a torn intake duct or vacuum line. Check the ducts and make sure they are free from cracks or splits and that the clamps are secure. If you find an issue or need additional help, look for a qualified technician to pinpoint the cause of your Check Engine Light.

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
  1. Home
  2. Questions
  3. Q: Check Engine light is coming on

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: Kia Sporate Engine check light issue and car stalled this morning!

The infamous "loose gas cap code" is P0442. P0434 is an issue with a heated catalytic converter not coming up to temperature quickly enough. It can be caused by the fuel injection being too rich. If you starter is not...


Your vehicle has three ignition coils. Diagnostic Trouble Code P0300 relates to random cylinder misfiring (not good for the catalytic converter, by the way) which has many, many potential causes but the first thing you should consider is when were...

Q: Intermittent miscommunication between acc. pedal and throttle body 2007 Mazda CX-7

Hi there, from your symptom description, it sounds like your throttle position sensor is failing. Check for problem codes, whether the Check Engine or electronic throttle warning lights are on. I would recommend an engine inspection by a mobile, professional...

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...
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...
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.