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Re: 1996 Sable - EGR insufficient flow and bank 1 O2 sensor
I believe I had the same code, I can't be sure tho. I removed the TB from the manifold and found that sludge had plugged up the channel that runs around the opening in the manifold. The "air" needs to flow thru here. I gently scraped it out and cleaned the TB base, manifold, and gasket, and reinstalled the TB. Reset the codes and haven't had a problem since.
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