97 Protege Check Engline light won't go off.

Trooper

Member
I have got pretty much all the problems with my car solved with the exception of my check engine light, and after bringing it to 3 different garages, none have been able to get it off for good.

This is a list of repairs that I have made on the car recently to try to get it off and keep it off:

-Changed Spark Plugs
-Change PCV Valve
-Cleaned intake
-Check/Clean o2 Sensors
-Cleaned Throttle plate
-Cleaned cap and rotor
-Changed hose clamp
-Changed Thurmostat and gasket
-Cleaned inlet and replaced hose clamp

Basically a complete engine tune up.

The engine used to be very rough on idol, and had a loss of power, but now everything runs fine, yet the check engine light won't stay off.

I had a buddy who works in a garage reset it for me twice now to get it off, but it always comes back on.

It used to come on and off frequently when I first got it, but it has been on constant for the past month now.

Any idea what could be causing it?
 
Do you have any Mods done to your car, if so what are they?

And what is the Cel Code and description you got from the read out?
 
I had the same problem with mine, Trooper, and it ended up being the thermostat, but I saw that you had changed it.
 
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