Codes P2401 and P2099?

Tiny
AMANDAOVIEDO94
  • MEMBER
  • 2004 AUDI A4
  • 2.0L
  • 4 CYL
  • TURBO
  • 4WD
  • AUTOMATIC
  • 80,000 MILES
Had p0299 show up first replaced the diverter valve then p2401 showed up and it started to not drive as fast. What could be the issue?
Sunday, May 14th, 2023 AT 8:00 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,159 POSTS
P2401 - Evaporative Emission System Leak Detection Pump Control Circuit Low:

P2099 - Post Catalyst Fuel Trim System Too Rich Bank 2:

So, these are separate problems please start a new thread for the P2099 code. We will handle the P2401 code on this thread. It sounds like the leak detection pump is not working here is the location so you can change it out. Check out the images (below). Please let us know what happens.
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Monday, May 15th, 2023 AT 11:36 AM

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