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What is the code p1406 located on a 1996 buick

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What would be the first and most likely reason for my 1997 buick lesabre to be giving me a egr pintle position circuit malfunction?

This code indicates a problem with the EGR valve's pintle position. The EGR Valve's pintle could just be stuck in which case the problem could be fixed by cleaning the EGR valve.

If the EGR valve is electronically controlled or cleaning the valve does not fix the problem, you will most likely have to replace the EGR Valve.

Keep in mind that the EGR valve relies on inputs from other sensors to determine the pintle position. If one of these other sensors is not operating correctly, it could be giving you a false P1406 error code.

Dec 19, 2012 | 1997 Buick LeSabre

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Went to have my 97 skylark smoged and was was told my check engine light was not working. Tech said it has something to do with code p1406. Any suggestions?

Code p1406 is an EGR code but that has nothing to do with the light not working. Some one has probably taken the bulb out instead of fixing the EGR valve problem. You could just have a bad EGR valve or the ports under the EGR valve could be plugged with carbon . You need to remove the EGR valve to pinpoint the exhaust gas curcuit problem.

May 08, 2011 | 1997 Buick Skylark

2 Answers

Got diagnostic code P1406 on 1996 Saturn SL1

P1406: EGR valve pintle position circuit. Try cleaning any carbon deposits in your EGR valve. That's where I would start. I hope this helped and good luck.

Feb 10, 2011 | 1996 Saturn SL

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Wath P1406 Code means on a GMC jimmy 1996,

It's an egr valve problem (exhaust gas return) egr position sensor.
Take off the egr valve and turn it over and see if there is carbon build up in the ports, if there is clean it out with a pipe cleaner and a little carbon cleaner, just spray a little into the ports and clean it out. If that doesn't cure the problem, then either the sensor needs replacing, and or the egr valve.

Apr 15, 2010 | 1996 GMC Jimmy

1 Answer

1997 Buick LeSabre check engine P1406 ODBII code

the GM OBD II code P1406 points to your EGR valve. have it replaced

Nov 04, 2009 | 1997 Chevrolet Astro

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P1406 - EGR (Exhaust Gas Recirculation) Valve Pintle Position Circuit

You most likely have either a defective EGR position sensor or a peice of carbon holding the EGR pintle valve off it's seat.

Dec 03, 2008 | 1996 Saturn SL

1 Answer

1996 century

P0301 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #1

P0171 code basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. - this could be an open vacuum line.

on your P0301 and your P0171, the first thing I would check is your mass airflow sensor, it's probably fouled, also check the air filter, and vacuum lines for cracks.

P1406 code - EGR Valve Pintle Position Circuit - this basically states that the EGR valve is clogged.

Jun 14, 2008 | 2003 Buick Century

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