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Code PC1406


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Hey there everyone,

I was just driving from work earlier today and the Service Emissions System was displayed. Is PC1406 the correct diaganostic code? and what exactly am I looking at here?

Thanks for an input

"Cadillac, it's not a car, it's an obsession"

-W.Kingdon

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Sounds like the EGR pintle position code to me - time to clean the EGR valve.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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WOW KHE, thanks for the fast reply.

To clean the EGR, that has been posted several times...correct??

"Cadillac, it's not a car, it's an obsession"

-W.Kingdon

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WOW KHE, thanks for the fast reply.

To clean the EGR, that has been posted several times...correct??

It should be in the archives. It is more difficult now with the stainless steel fuel rail - you will need to lift the rear bank of injectors out of the manifold to get the bracket off the EGR stud but it is still a relatively easy job.

Kevin
'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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