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How to cause a check engine light? 200 1990

posted by  tjtsj on  Sun Mar 27 16:22 CST 2011
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last visit: Mon Sep 1 18:06 CST 2014
[RELATED]

Ok, so this is odd but I want to do something that will defiantly cause a code that causes the check engine light to come on. (beat the car at it's own game)

When I turn the key to the on position, it does light up like it should (maybe a bit dim but defiantly on). But I've been trying to stop a hunting idle that's intermittent and checked the codes today and got a 2-2-1 (Fuel trim (lambda control) too lean at part load). Which according to the FAQ and my book should trigger the light. In my testing of the idle issue I pulled the wire for the MAF sensor for about 10-15 seconds (idle smooths out) and still no light.

So what's the easiest most definite way to trigger the light. Cause I would like to know when there actually is a problem

-----
"The Brick Oven"
235K Black Wagon in Florida with no A/C






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