TBI 305 Running "rich"

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01-24-2006, 11:31 AM

texas92rs305

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TBI 305 Running "rich"

I have a 92 RS 305 TBI. Im not sure how to tune the injectors so it runs better. When ever I accelerate I can smell an excess of gas. It would be nice to know how to tune it up a little so I can save some gas.

01-24-2006, 01:49 PM

gmpartsguy

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RE: TBI 305 Running "rich"

You can't tune them, probably just your fuel pressure regulator going bad.

01-24-2006, 11:29 PM

z28pete

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Join Date: Aug 2005

Location: North East PA

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RE: TBI 305 Running "rich"

Make sure car has a good tune up. Then check fuel pressure regulator, O2 sensor, and make sure vapor recovery system is working. The last one won't save gas but will make car smell much better.