2006 Cadillac CTS Evap pressure sensor

2006 CADILLAC CTS
148,000 MILES
Avatar
MWATTERSON
  • MEMBER
  • 40 POSTS
We're is the evap pressure sensor located. Is this something
That easy to do or does it need to be taken to a dealer to fix.
Apr 8, 2015 at 4:42 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
When you say EVAP pressure sensor, are you referring to the emissions components or the AC?
Apr 8, 2015 at 7:27 PM
Avatar
MWATTERSON
  • MEMBER
  • 40 POSTS
Emissions
Apr 8, 2015 at 8:06 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Okay, there isn't anything actually called a pressure sensor. Can you provide a code so I can look into it for you?
Apr 9, 2015 at 8:27 AM
Avatar
MWATTERSON
  • MEMBER
  • 40 POSTS
The code is PO496, thank you for helping me.
Apr 9, 2015 at 5:02 PM
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Okay, that makes sense. That deals with what is called the purge valve in the EVAP system. What is happening is under a non-purge condition, there is too much pressure building up in the system. That is where the term pressure sensor came from. Now I understand. There are a few things that can cause this:

EVAP canister vent valve not operating
EVAP canister could be plugged
Faulty EVAP pressure sensor
EVAP canister vent wiring is shorted, open, or has a poor connection.


Apr 9, 2015 at 6:04 PM