Land Rover Repair: Engine Service Light, land rover discovery, emission control system


Question
1998 Land Rover Discovery V8 Limited Edition, replaced O2 sensor and cleared computer code now the Red Engine Service Light is on and the Drivers Manual indicates that this light indicates an emissions problem, I replaced the sensor so I could pass my State Emissions testing,anything I can do to correct this besides getting hosed ($) at the Rover Dealer.

Answer
Hi Robin,

this is normal after any emission work has been done.

The repair manuals states:

The emission maintenance reminder is designed to activate at 52,500 and 105,000 miles respectively and will illuminate a 'Service Engine' red warning light in instrument binnacle.

The emission maintenance reminder must be reset after required maintenance has been carried out and a new tamperproof label fitted by a Land Rover of North America dealer. This emission maintenance reminder is part of the Emission Control System

Reset
1. The control unit is located in the passenger footwell.
2. Identify control unit and remove from plug.
3. Remove tamperproof label to reveal access hole for resetting.
4. Place a thin metallic probe into access hole and momentarily electrically short between reset pins inside unit.

Here is a website that can show you photos to reset this:

http://www.discoweb.org/reset

Best of luck,

JohnMc