Q: Check Engine light codes

asked by on

My car has 3 Check Engine light codes on: p0440 p0441 and p0445. What can I do to solve the emissions issues?

If your Check Engine light has come on for emissions problems I would recommend having a knowledgable technician, such as one from YourMechanic, scan and interpret the trouble codes, and thoroughly examine the vehicle’s emissions system. All three of those codes are related to the vehicle’s evaporative emissions system. P0440 indicates a large leak in the EVAP system, P0441 indicates incorrect purge flow, and P0445 indicates a EVAP purge valve circuit short. 2 of the 3 codes are related to the purge valve, so I would first locate and test the purge valve, and then search for leaks from there.

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. Check Engine light codes

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: No resistance in steering and noise when wheel turned all the way left after slight fender bender

Hi there. It sounds like part of the suspension was bent when the accident occurred. From what you are explaining most of the time the strut or the lower control arm gets bent and causes this. If you want to...

Q: Engine lost power driving on the road

These issues could be caused by a number of problems. This could be anything from a mechanical issue (low oil pressure, intake air system leak, etc.) to an electrical problem (throttle position sensor, oxygen sensors, etc.). Since the Check Engine...

Q: TCS (Traction Control System) light is sometimes on

Hello, most often this problem is due to a dirty or faulty wheel speed sensor. Wheel speed sensors provide critical information to both the ABS and traction control systems (TCS). To determine which wheel speed sensor is bad (or other...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.