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Old 03-22-2006, 11:33 AM
TheMan5952 TheMan5952 is offline
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Re: Error Message "emission System Service Required"

It's because you removed your cat. There is a O2 sensor behind it to measure the cats efficiency. You need to get a ECU remap that will get rid of the Rear O2 input or buy a module that will fake it. It's a common issues when you remove the cat on OBD-II cars.
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