Q: I changed the secondary air pump and the check valve and I still have a code of p0411 what do I do next

asked by on

I have changed my secondary air injection pump and the check valve and the check engine light is still on what do I do

My car has 14744 miles.
My car has an automatic transmission.

If you didn’t already erase the code, try that and see if the code comes back. If it does, the remaining causes of code P0411 include air lines that are faulty, the air injection system has excessive carbon buildup and/or there is an open or short in the wiring harness for the air injection system. A real time scanner can be employed to pinpoint the issue. If you are unable to find the cause in the listed areas, please request a check engine light diagnostic. and a certified mechanic from YourMechanic will resolve this. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. I changed the secondary air pump and the check valve and I still have a code of p0411 what do I do next

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: Q: Car won't start, even with jumpstart

Hello. It is likely that the car battery is the cause of why your car won't start. It is possible that the battery has bad cells which will prevent the car from starting, even when using jumper cables. The battery,...

Q: Car losing oil, excessive transfer case fluid

Hello. These two systems are separate so they would not be related. If the transfer case is overfilled then it was either filled too high when it was last serviced or water got into it if you have driven through...

Q: High pitch whining from alternator.

This can come from a variety of places other than the alternator such as the transmission. Your car should be equipped with what is called a CVT (constant variable speed transmission) which is notorious for making this kind of a...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...