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96 Regal 3.1 intermittant egr code


Chip

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I am getting an intermittant egr P0401 code on my 96 3.1 regal. I am noticing a slightly rough idle at times, and at others, smooth as can be.

 

Is it worth just replacing the whole egr, or could the intake inlet be carboned up? Should I pull the upper intake first before spending $160.00 - $190.00 on new egr unit?

 

Any insight from your experiences would be great.

 

Thanks

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No problem Be forewarned though, what they don't show you in the video is that the lower throttle body bolt is a PITA to get to because a coolant pipe runs right in front of it. It's not horrible, but it will take you a little time to get it off. And one more thing, make sure you get a new throttle body gasket before you attempt to do this. Mine completely disintegrated when I took the throttle body off (into like 6 or 7 pieces) so you chances are you won't be able to reuse it.

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  • 7 months later...
No problem Be forewarned though, what they don't show you in the video is that the lower throttle body bolt is a PITA to get to because a coolant pipe runs right in front of it. It's not horrible, but it will take you a little time to get it off. And one more thing, make sure you get a new throttle body gasket before you attempt to do this. Mine completely disintegrated when I took the throttle body off (into like 6 or 7 pieces) so you chances are you won't be able to reuse it.

 

 

Finally got around to doing this job. You were spot on in saying that the lower TB bolt is a biotch! With the pressure the coolant tube was putting on it, I actually began to crossthread the lower bolt on reinstall. Luckily, the trusty metric tap set cleaned things up. I had that nub of carbon on the egr port and got it all cleaned out.

 

Thanks again

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