Q: How to clear P0443 code?

asked by on

At first I tried clearing the code with a OBD II scanner and the check engine light came immediately back on. After that, I replaced the evap purge selenoid valve but it still have the check engine light and the same code. I don't know what else to do. Any suggestions?

My car has 160000 miles.
My car has an automatic transmission.

The purge valve connector should have power from the main relay terminal C on one of the pins of the purge valve with the key on. The other wire goes to the pin 18 of the ECM. If you have power to the purge valve and the wire to the ECM pin 18 is good then you may have a defective ECM. If you need help with this problem, then I would recommend having it diagnosed by a qualified technician, such as one from YourMechanic.

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. How to clear P0443 code?

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: Car breaks down

Hello. With the symptoms you were having at first, the recommendations you took are valid attempts. Not to mention you are only helping the vehicle by updating these components. The best thing to do with the vehicle having a successful...

Q: Rough starts and engine dies at idle

If the idle air control valve or mass air sensor is having problems. If the idle valve is sticking closed it can cause the engine to idle very low and rough, and will run fine if the throttle is held...

Q: What does the PCV valve and hose look like and where are they located?

Hi there. The PCV valve for this particular model is built into the hose assembly. The hose is a larger hose that connects to the intake plenum and runs to the rear valve cover, you can't miss it as it's...

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...
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...
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...