Question about 1993 Jeep Grand Cherokee
Tested high in hydrocarbons and oxides
Posted by Anonymous on
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Posted on Jan 02, 2017
If you changed the battery or it went dead before your test ,it reset you history you will have to drive it a couple of weeks to update you emission control module then have it retested
Posted on Mar 13, 2009
everthing effects the reading. pedal position, rpm load engine temp. air temp. all that stuff you added was just a waste of time and money. What you should of done wa diagnosed it correctly so your not cheating an emission test. Since barley failed the first time I would of recommended a tunup if not done in 40,000 miles. I would have looked at the scanner data to see if the inputs were correct. Iwould have serviced the oil if its been awhile. If everything checked out i would of recommended a catalytic converter. But there are 3 test to determine if the cat is dead we do first. If your car was barley failing and you needed a tunup and the cat was still good the need for a tuneup could toast the cat within a couple weeks.
Posted on Aug 01, 2009
Testimonial: "Assessment was correct. Needed the catalytic converter replaced."
SOURCE: i live in Ohio and
have the obd codes checked, once they get checked, post the results here, and we will be able to better help you in a solution, I can assist you in defining what the codes mean, and how to repair your vehicle so that your emissions will drop below the required amounts so that you will pass the test
Posted on Aug 10, 2011
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