Question about 1997 Chevrolet Astro

1 Answer

P1406 position circuit pintle

Engine turns over without a hint of firing. I ran a diagnostic and the code came out "P1406 EGR valve pintle position circuit". Engine is a 4.3 Vortec. Would a defective EGR position sensor cause the engine to not start?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 52 Answers

Yes an EGR will cause a vehicle to not start. That code means EGR is not working properly and That the pintle is stuck in the open or closed position. The EGR burns the unburned fuel that wasnt burned the first time by passing it through the engine again instead of raw fuel out the tailpipe.

Posted on Jan 01, 2014

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

redds55
  • 2620 Answers

SOURCE: 1996 chevy blazer check engine light code p1406

Replace EGR Valve

Posted on Oct 31, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What are the probable cause(s) of DTC P1406?


Definition of Diagnostic Trouble Code P1406 Audi: EGR Temperature Sensor Range/Performance BMW: Heated Catalyst Internal Control Module Checksum/ROM Error Buick: EGR Valve Pintle Position Circuit Cadillac: EGR Valve Pintle Position Circuit Chevrolet: EGR Valve Pintle Position Circuit Ford: Differential Pressure Feedback Sensor Downstream Hose Off Or Plugged GMC: EGR Valve Pintle Position Circuit Isuzu: EGR Valve Pintle Position Circuit Lincoln: Differential Pressure Feedback Sensor Downstream Hose Off Or Plugged Mazda: DPFE Sensor Downstream Hose Off Or Plugged Mercury: Differential Pressure Feedback Sensor Downstream Hose Off Or Plugged Oldsmobile: EGR Valve Pintle Position Circuit Pontiac: EGR Valve Pintle Position Circuit Saturn: EGR Valve Pintle Position Circuit Toyota: Turbo Pressure Sensor Range/Performance Problem Volkswagen: EGR Temperature Sensor Range/Performance Volvo: Termperature Warning > 100 degrees C

Jun 18, 2015 | Cars & Trucks

1 Answer

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

1 Answer

96 sonoma running too rich with p1406 code


P1406 EGR Valve Pintle Position Circuit Fault
This code is usually caused by carbon buildup in the EGR valve. The carbon deposits prevent the valve from closing completely.

After removing the EGR valve, clean the pintle seat area of the valve and the corresponding passageway in the engine.

or simply replace the EGR valve.

Hope this helps!

Mar 07, 2012 | 1996 GMC Sonoma

1 Answer

Diagnostic code p1441 and p1406 fir 96 camaro WHATS THAT MEAN


Here's the description for the DTC P1406: The PCM monitors the EGR valve pintle position input to ensure that the valve responds properly to commands from the PCM and to detect a malfunction if the pintle position sensor and control circuits are open or shorted. If the PCM detects a pintle position signal voltage outside the normal range of the pintle position sensor, or a signal voltage that is not within a tolerance considered acceptable for proper EGR system operation, the PCM will set DTC P1406.

That means there is possibly a problem within the EGR valve itself, or a wiring/connector related to the EGR valve. Having a scan tool to command the EGR valve and watch the data would be extremely helpful in diagnosing this code.

Here's the description for DTC P1441:
The EVAP vacuum switch is a normally closed switch positioned in the purge line between the canister and the EVAP purge valve. The EVAP vacuum switch will open when vacuum increases to greater than 5 inches of water (in H2O) in the purge line. The PCM monitors the EVAP vacuum switch signal to determine if the evaporative emission control system is working properly. If the switch is open (purge flow detected) when the PCM is not commanding the EVAP purge valve ON, DTC P1441 will be set.

Again, this code would be best diagnosed with a scan tool that can command the purge valve and allow you to watch the data related to it. Check your vacuum lines and electrical connections to the purge vacuum switch. If the vacuum switch is unplugged this code can set.

Aug 05, 2011 | Chevrolet Camaro Cars & Trucks

1 Answer

Trouble code P1406 Failed EGR value, Open or short circuit condition Also code P0301 misfire cylinder 1 Next steps? Information for replacing EGR value? 1997 Bonneville SE 105K


P1406 Code - EGR Valve Pintle Position Circuit
The PCM monitors the EGR valve pintle position input to ensure that the valve responds properly to commands from the PCM and to detect a malfunction if the pintle position sensor and control circuits are open or shorted. If the PCM detects a pintle position signal voltage outside the normal range of the pintle position sensor, or a signal voltage that is not within a tolerance considered acceptable for proper EGR system operation, the PCM will set DTC P1406.

CONDITIONS FOR SETTING THE DTC

Ignition 1 voltage is greater than 10 volts.
EGR Feedback is less than 0.14 volt at any time.

OR

EGR Feedback is 0.4 volt greater or less than the EGR Closed Valve Pintle Position when the Desired EGR Position is commanded to 0%.

OR

Actual EGR Position is 20% greater or less than the Desired EGR Position.
Any of the above conditions are present for longer than 20 seconds.

ACTION TAKEN WHEN THE DTC SETS

The PCM will illuminate the Malfunction Indicator Lamp (MIL) during the second consecutive trip in which the diagnostic test has been run and failed.
The PCM will store conditions which were present when the DTC set as Freeze Frame and Fail Records data.

CONDITIONS FOR CLEARING THE MIL/DTC

The PCM will turn the MIL OFF during the third consecutive trip in which the diagnostic has been run and passed.
The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.
The DTC can be cleared by using the scan tool Clear Info function or by disconnecting the PCM battery feed.

DIAGNOSTIC AIDS
Check for the following conditions:

Open EGR ignition filter circuit.

An open in the EGR ignition filter circuit will cause EGR Position Error to vary erratically while the EGR valve is operating. With the ignition ON, a test light should illuminate when connected between ground and the EGR ignition filter circuit at the PCM connector. If not, locate and repair the open in the EGR ignition filter circuit.

Excessive deposits on EGR valve pintle or seat.

Remove the EGR valve and check for deposits that may interfere with the EGR valve pintle extending completely or cause the pintle to stick.

Poor connection or damaged harness. Inspect the wiring harness for damage. If the harness appears to be OK, observe the Actual EGR position display on the scan tool while moving connectors and wiring harnesses related to the EGR valve. A change in the display will indicate the location of the malfunction.

Reviewing the Fail Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set

TEST DESCRIPTION
Number(s) below refer to the step number(s) on the Diagnostic Table:

Verifies that the malfunction is present.

The PCM contains a recirculation diode which filters the EGR ignition feed for the EGR valve. The recirculation diode is connected to the ignition filter (EGR ignition feed) circuit. If the ignition filter circuit is open, Actual EGR position may be erratic when compared to Desired EGR position. An open in the EGR ignition filter circuit will cause DTC P1406 to be set after an extended period of time.
If DTC P1406 will only set under certain conditions, the malfunction may be intermittent; refer to DTC P1406 Diagnostic Aids. If an intermittent wiring problem is not present, check for a poor connection at the PCM or the EGR valve. If the connections are OK and DTC P1406 continues to set, replace the EGR valve.

This vehicle is equipped with a PCM which utilizes an Electrically Erasable Programmable Read Only Memory (EEPROM). When the PCM is being replaced, the new PCM must be programmed.


------------------------------------------------------------------------------------------------------------------------------
P0301 Code - Cylinder #1 Misfire Detected
A 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.

Symptoms may include:
the engine may be harder to start
the engine may stumble / stumble, and/or hesitate
other symptoms may also be present

Causes: A code P0301 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Possible Solutions:
If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.


Check it and keep us updated.

May 03, 2011 | 1997 Pontiac Bonneville

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

2 Answers

Engine light is on and the that comes up on the scan tool is p1406


GM Code P1406=EGR pintle position error. the EGR valve pintle may not be able to move properly due to carbon deposits. It should be cleaned if possible and rechecked.

Feb 05, 2011 | 1995 GMC Jimmy

2 Answers

Chevy pickup 350 vortex code p-1406 comes up can't find what code means in my book. i know it has something to do with manufacturer control auxiliary emissions controls. i don't know where to look for the...


DTC P1406 IS EGR VALVE PINTLE POSITION CIRCUIT MALFUNCTION CONDITIONS.POSSIBLE CAUSE EGR SOLENOID CONTROL CIRCUIT IS OPEN SHORTED TO GROUND OR TO B+ -CHECK EGR VALVE FUSE - OR THE EGR VALVE AND PCM HAS FAILED.

Jul 09, 2010 | 2002 Chevrolet Silverado 1500

2 Answers

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

ASM EMISSIONS TEST RESULTS - CODE P1406


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

Not finding what you are looking for?
1997 Chevrolet Astro Logo

379 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75005 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7710 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...