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Old 02-04-2011, 01:25 AM
Ponchoguy Ponchoguy is offline
Tech Enthusiast
2002 Altima
 
Join Date: Mar 2010
Posts: 266
Default Cats

Be careful with aftermarket converters. Some will still set efficiency codes as they are not specific and efficient enough for every vehicle that they are listed as covering. The ECM sets a code even with the new aftermarket converter in some cases.

The OEM cat is specific to the year and emissions of that vehicle. On OBDI vehicles, an aftermarket cat works fine. It can on OBDII cars, but many places install universal converters that are a problem. Some aftermarket "specific" ones can also be a problem as well.
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