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Re: 92 Lexus, SC 3OO, code 71 EGR
Posted to Emissions Forum on 5/10/2005

Hi Joe.

First remove the plenum to manifold, as if your trying to replace spark plugs, place on bench. there should be three freeze plugs that you can reuse, if you punch them in on the side and remove them with a screwdriver. Use a small honing tool(i found... Login to read more.