Q: Q: Check engine light stays on

asked by on

I will soon have emissions testing and there is the check engine light on in my vehicle. I have already done some repairs on the car, including the solenoid valve replacement, the knock sensor as well as the gas line. I was told that EDV is okay but that the CEL might be on due to MAP sensor. Do you have any idea what might be making the CEL to stay on?

Hello. In order to know why the light is on, I would need to know the codes from the computer. It can be anything for a computer issue to a bad gas cap. I usually scan the computer first to see what is going on. This will point me in the right direction when looking for the faulty component. If you want to have this diagnosed, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your Check Engine Light and make the correct repairs.

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. Q: Check engine light stays 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: Why would my engine start knocking a few days after an oil change in my 2001 Volkswagen Beetle

Hi there. It sounds like you may have a serious issue starting with the engine. I would check the level of the oil first. If it is very low then that may be the cause of the noise. If the...

Q: Possible issue with the shift solenoid or TCM?

It could be either one and it's impossible to say without inspecting the car. The difference between the O'Reilly diagnosis and the dealer's is probably one of equipment. O'Reilly uses a generic OBD-II scanner and the dealer should be using...

Q: Truck making rattling sound underneath

Hi. The issues are probably unrelated. The first step in diagnosing your Check Engine Light is to retrieve the diagnostic trouble codes (DTCs). There are countless reasons your Check Engine Light may be on, and these codes serve as a...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...