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Q: ERG Valve Cleaning on 1996 Toyota Avalon

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
how do I clean The ERG system on a 1996 Toyota Avalon? Mine failed the smog test, ( California ). The technician Said 99% of the time it just needs cleaning on high milage cars. My toyota is at 250,000 miles.
Thank You,
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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The EGR passages don't get plugged up so much on the Avalon as they do on Hondas. The vacuum modulator or vacuum electro-switiching valves fail intermittently even though they may test good when you actually test them. You would need test information and procedures to clean the system and get an over view of how things work. There is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You can get a one week subscription or year subscription very cheap. The information is year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual try and get an online repair manual subscription.
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