P1406 Auxiliary Emission Control System Failure

P1406 Auxiliary Emission Control System Failure

Postby grandamle91 [OP] » January 21st 2011, 2:35am

What is this? Came on this morning after starting my van.
97 Astro
-Evan
MONSTRO 97 Chevy Astro 346k
LQ9
4L80E
NP262
Full float 14 bolt 3.73
Tuned for e85
Headers 4in Exhaust
3500 spindles and hubs
285\85-16
98 Pontiac Grand Prix GTP 253k
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Re: P1406 Auxiliary Emission Control System Failure

Postby Phantom » January 21st 2011, 2:47am

DTC P1406 Exhaust Gas Recirculation (EGR) Position Sensor Performance
Phantom
Firing on 7 Cylinders (L4)
Firing on 7 Cylinders (L4)
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Re: P1406 Auxiliary Emission Control System Failure

Postby grandamle91 [OP] » January 21st 2011, 6:25am

And what does that mean? I know were the egr is, but does it mean its not opening\closing or something else
-Evan
MONSTRO 97 Chevy Astro 346k
LQ9
4L80E
NP262
Full float 14 bolt 3.73
Tuned for e85
Headers 4in Exhaust
3500 spindles and hubs
285\85-16
98 Pontiac Grand Prix GTP 253k
***Removed Dead Image***
Original Poster [OP]
User avatar
grandamle91
V8 Swap Achievement
V8 Swap Achievement
Firing on 3 Cylinders (L2)
Firing on 3 Cylinders (L2)
Years of Membership: grandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full years
Posts: 1399
Topics: 137
Images: 2
Joined: April 2008
Location: Watertown, SD
Gender: Male
Alias (AKA): Evan
Van Model Year: 1997
Van Make/Model: Chevrolet Astro
Extra Info: LT 6.0 V8 4L80E NP2

Re: P1406 Auxiliary Emission Control System Failure

Postby Phantom » January 21st 2011, 2:28pm

P1406 is described as
While driving, the EGR monitor commands the EGR valve closed and checks the
differential pressure across the EGR orifice. The test fails when the signal from the DPF EGR sensor continues to indicate EGR flow even after the EGR valve is commanded closed.

Things that can cause it
Downstream hose is disconnected.
Downstream hose is plugged (ice).
Plugged or damaged EGR tube.

Look for signs of water or icing in the hose.
Verify the connection and routing (no excessive dips).
Verify the DPF EGR sensor proper mounting and function. View the DPFEGR PID while applying and releasing vacuum directly to the sensor with a hand pump.
Phantom
Firing on 7 Cylinders (L4)
Firing on 7 Cylinders (L4)
Years of Membership: Phantom has been a member for 9 full yearsPhantom has been a member for 9 full yearsPhantom has been a member for 9 full yearsPhantom has been a member for 9 full yearsPhantom has been a member for 9 full yearsPhantom has been a member for 9 full yearsPhantom has been a member for 9 full yearsPhantom has been a member for 9 full yearsPhantom has been a member for 9 full years
Posts: 3725
Topics: 15
Joined: July 2010
Van Make/Model: Chevrolet Astro

Re: P1406 Auxiliary Emission Control System Failure

Postby grandamle91 [OP] » January 21st 2011, 5:10pm

What hose am i looking for?
-Evan
MONSTRO 97 Chevy Astro 346k
LQ9
4L80E
NP262
Full float 14 bolt 3.73
Tuned for e85
Headers 4in Exhaust
3500 spindles and hubs
285\85-16
98 Pontiac Grand Prix GTP 253k
***Removed Dead Image***
Original Poster [OP]
User avatar
grandamle91
V8 Swap Achievement
V8 Swap Achievement
Firing on 3 Cylinders (L2)
Firing on 3 Cylinders (L2)
Years of Membership: grandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full yearsgrandamle91 has been a member for 12 full years
Posts: 1399
Topics: 137
Images: 2
Joined: April 2008
Location: Watertown, SD
Gender: Male
Alias (AKA): Evan
Van Model Year: 1997
Van Make/Model: Chevrolet Astro
Extra Info: LT 6.0 V8 4L80E NP2


 
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