Check Engine Light issues

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Joined
Sep 11, 2003
Threads
26
Messages
335
Location
Near Madison, WI
Website
www.fjforty.com
I have had my 97 CE for about a year and a half. I have not been experiencing any issues with it (except for the poor gas milage of 11.5mpg or so).

One thing that I had noticed but never registered was that I had never seen a check engine light. Now I may be wrong but doesn't the light come on for a couple seconds when you first start the vehicle or if you shut off the engine but leave the ignition on? I have never seen mine.

I decided to finally pick up a code reader for my b-day, and out of curiosity I used it on the 80. It came back with an oxygen sensor fault. I cleared the codes and am waiting for my reader to recheck the computer. It seems to stall now (the code reader) when it gets to the o2 sensor check. The check engine light should have been on if there was a o2 sensor error... right?

How common is it to have a CEL burn out? I am wondering if there was something a bit shady done to my truck in the past.:confused:

I suppose I will replace the bulb and order an oxygen sensor and wait and see. Heck, maybe I'll get a bit of a bump in the milage department too.
 
A FSM is a good idea, I have them for all of my other vehicles, just not this one for some reason. Man am I slacking.
 
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