WHAT'S THE BEST WAY TO REMOVE O2S

  • Tiny
  • HUTCH
  • 1998 Mercury Mystique
  • 90,000 miles

Bank 1, upstream, 98 mercury mystique, remove coil pack or what? 2.5, V6. Thanks! Now if this is not the problem how do I check for intake leak? Code P1131, THANKS!

Thursday, April 5th, 2012 AT 5:19 PM

3 Answers

  • Tiny
  • saturntech9
  • Expert
  • 28,245 posts

The best way to check for a vacuum leak is let it idle and spray carb spray all around looking for the rpms going up or down stumbling or dying. Or better yet a evap smoke machine.

Was this
answer
helpful?
Yes
No
Thursday, April 5th, 2012 AT 5:22 PM
  • Tiny
  • HUTCH
  • Member

Hi saturntech9,
Hutch here Thanks for you answer, but do you know the answer to the first part of my question? What's the best way to get to bank 1 upstream sensor. Thanks!

Was this
answer
helpful?
Yes
No
Thursday, April 5th, 2012 AT 7:23 PM
  • Tiny
  • saturntech9
  • Expert
  • 28,245 posts

If there is a heat shield on the exhaust manifold remove it. Then unplug the sensor and use a short o2 sensor socket with a ratchet to unscrew it.

Was this
answer
helpful?
Yes
No
Friday, April 6th, 2012 AT 2:52 AM

Please login or register to post a reply.

Similar Questions