Mechanics

WHAT'S THE BEST WAY TO REMOVE O2S

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!
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HUTCH
April 5, 2012.




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.

Saturntech9
Apr 5, 2012.
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!
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Tiny
HUTCH
Apr 5, 2012.
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.

Saturntech9
Apr 6, 2012.

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