: can any one help

11-02-03, 01:01 PM
can any one tell me what code PC1406 is? thanks

11-02-03, 02:49 PM
I came up with.......

P1406 - EGR Valve Pintle Position Circuit

11-02-03, 04:52 PM
thanks alot . now can any one tell me what that means and where the egr vslve is locasted on my 96 deville

01-03-04, 07:58 AM
Did anyone get back to you on this issue? I have the same issue. Where was the EGR located? Did you replace it yourself, or have someone do it?



01-03-04, 09:09 AM
You can try cleaning the EGR valve. This will fix about 70% of them. One problem on the Northstar is there is a metal fuel line tab that shares one of the mounting studs. This turns a 15 minute job of removing the EGR into about an hour and a half. If your EGR is sharing the stud go ahead and obtain the large throttle body o-ring gasket. You will find the throttle body has to be removed in order to access the fuel line. The original o-rings swell up and are imposible to reinstal.A leaking EGR will cause a rough idle.

01-03-04, 11:51 AM
That is a good way to kill 2 birds with one stone. Take off both and clean!!! :)