Question about 1999 Mitsubishi Montero Sport
The "Service engine soon" light is activated by either one or two air/oxygen sensors found in different places on most cars. They are usually found some where in the exhaust system. They monitor the amount of unburned fuel to air ratio and report back to the computer in your car via two wires. In about 80% of the cases the sensor/sensors are malfunctioning. and replacing them solves the problem. They retail in a parts store for 25-50 bucks each and are usually a dickens to remove and reinstall. Usually you have to have a special wrench that will fit over the connecting wires and they are mounted where it is difficult to get to them. The Dealers charge aboy 200 bucks to install one.
Posted on Jan 01, 2011
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Posted on Jan 02, 2017
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