Question about 1999 Mercury Mountaineer
What are these codes for?
This POST describes the P1450 - Evap and fuel tank related.
P0133 is: Oxygen Sensor Circuit Slow Response (Bank1, Sensor1)
Your 02 sensor is likely worn out. Your Merc is 13 years old and is likely due. You do NOT have to buy from the dealer, as they can be bought online for much less, if you can replace it yourself. Usually just a wrench and connector needs unplugged, but depends on where they are located on the exhaust.
Posted on Nov 06, 2012
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Posted on Jan 02, 2017
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