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#1
02-01-2010, 10:35 PM
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Code P1406
I have a 97 GP GTP with 240,000 miles. I got the "service engine soon" light and I took it to auto store for diagnosis and they gave me a code (P1406). It read something like "EGR Position Circuit". Can someone shed some light on what code P1406 stand for?
Thanks in advance. 
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#2
02-02-2010, 07:25 PM
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Re: Code P1406
It means there is an EGR pintle position error. Either a short or open in the electrical part of the EGR, closed valve position is too high or position error too high. You can try cleaning the EGR pintle. If that doesn't work then the electrical part of the EGR is bad.
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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8 '02 Oldsmobile Alero GL2 - LA1 3400 V6 '99 Buick Regal LS - L36 Series II 3800 V6 '03 Honda CR250R MX - 2 Stroke 250cc '97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold) Timeslip 08/12/06 AF Community Guidelines
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#3
02-02-2010, 08:03 PM
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Re: Code P1406
I would replace the EGR, gasket, and clean egr passages
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