WHAT'S THE BEST WAY TO REMOVE O2S

1998 Mercury Mystique

Tiny

HUTCH

April, 5, 2012 AT 5:19 PM

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!

FOUND 1494 RELATED QUESTIONS

3 Answers

Tiny

saturntech9

April, 5, 2012 AT 5:22 PM

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.

Tiny

HUTCH

April, 5, 2012 AT 7:23 PM

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!

Tiny

saturntech9

April, 6, 2012 AT 2:52 AM

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.

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