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Old 01-31-2010, 03:17 PM   #1
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Default Emission light on

I have an 89 cherokee and i cant figure out why my emissions light is on, and im just wonderin can i pass emissions with that on?
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Old 01-31-2010, 04:22 PM   #2
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nope.. they wont even pass one with the check engine light on.. in Cal. and Ohio, anyway..

there is some stuff that you spray on a sensor to unstick it.. ask at the auto parts store.. i bet they would have it

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Old 01-31-2010, 06:11 PM   #3
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There is no triggerable emissions light on an 89....

It is set off by a timer under the dash. Pull the timer.. the light will never come on again. If you look under the dash towards the heater controls, it is a smoked plastic box with white gears inside. Unplug it.. you are done.
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Old 01-31-2010, 06:15 PM   #4
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Quote:
Originally Posted by whowey View Post
There is no triggerable emissions light on an 89....

It is set off by a timer under the dash. Pull the timer.. the light will never come on again. If you look under the dash towards the heater controls, it is a smoked plastic box with white gears inside. Unplug it.. you are done.
x2...
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Old 01-31-2010, 06:31 PM   #5
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Yeah unplug it! That light indicates its time to go back to the dealer to buy another timer and O2 sensor and pay the 1 hr flat rate $$.
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Old 01-31-2010, 10:01 PM   #6
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Quote:
Originally Posted by whowey View Post
There is no triggerable emissions light on an 89....

It is set off by a timer under the dash. Pull the timer.. the light will never come on again. If you look under the dash towards the heater controls, it is a smoked plastic box with white gears inside. Unplug it.. you are done.
x2

It is there as a "reminder" to check your emissions equipment (Oxygen sensor, EGR, etc) since there is no CEL in a renix cherokee...
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Old 01-31-2010, 10:13 PM   #7
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X2. Unplug it
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Old 01-31-2010, 10:15 PM   #8
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It tells you when you reach 82,500 miles and to change the 02 sensor,they were changed out by the dealer. I doubt you can still get them. I would just remove the bulb and it will be fine,not the same as check engine light.
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Old 01-01-2011, 03:07 PM   #9
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Default Emission light

This addressed a problem with a 1989 XJ Laredo that I just bought. The box in my XJ was closer to the vent under the steering wheel, but it did just what the post said it would do. Thanks. XJ forum!
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