Question about 2006 Dodge Ram 1500

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P0406 code EGR sensor A High input, engine light, on what do I need to replace? rhawk2532@charter.net

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Egr valve needs to be replaced. Good Luck!!!

Posted on Nov 14, 2010

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What does obd2 code p0406


The code P0406 is for Exhaust Gas Recirculation Sensor 'A' Circuit High. The possible causes are EGR Valve clogged, dirty or leaky, EGR valve damaged/defective, EGR sensor ground circuit open, EGR sensor signal circuit open, EGR volume control solenoid valve harness is open or shorted, EGR volume control solenoid valve circuit poor electrical connection. An improper voltage signal is sent to ECM through the valve. You will have the symptoms of engine light on and engine hesitation.

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2005 magnum p0406 egr valve sensor code error


P0406 indicates high voltage on the EGR sensor circuit. this is recommended for every 30,000 miles be inspected. although EGR system do not requires periodic inspection. instead, check only if engine trouble's develop. most EGR's requires replacing EGR valve, cleaning passages and installing new vacuum hose. misrouted vacuum hose causes engine poor operation. so. not just to unplug it.

Aug 20, 2012 | 2005 Dodge Magnum

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Whats does the code P 1684 and P 0406 mean for a 2001 dodge intrepid?


P0406 is EGR Position Sensor Circuit High Input

P1684 is The battery has been disconnected within the last 50 starts

If you leave the battery connected the P1684 will go away. the P0406 is the EGR valve is sticking or the sensor that detects how far open it is has failed. You could try taking it out and cleaning it. But I would clear the codes using a code reader that has the ability to "reset" the light.

Jun 29, 2011 | Dodge Intrepid Cars & Trucks

2 Answers

Dodge 2004 grand caravan check engin light code p0406


Replace the EGR valve. Very common code.

Jun 24, 2011 | 2004 Dodge Caravan

2 Answers

I have these codes coming up on my 2005 Dodge Ram. 5.7 liter motor: P0406 P2096 P0137 P2299 Thank you.


code #0406 = egr position sensor circuit high ( stuck egr valve or bad egr sensor most likely sensor )

code #2096 = downstream fuel trim system lean ( see next code )

code #0137 = O2 sensor bank 1 sensor 2 circuit low ( replace rear O2 sensor driver side )

code #2299 = brake peddle position/accelerator pedal position incompatible. ( hav you been power braking this truck? ) ( brake light was on wile accelerator was being pushed )

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I have a 2006 chrysler town and country and the code or P0406 came up and I would like to know how to fix it and what it means? Thankyou


P0406 is EGR position sensor circuit high input. You need to replace the EGR sensor, but it's part of the EGR valve assembly. About $80.00 for the part.

Dec 24, 2010 | Chrysler Town & Country Cars & Trucks

1 Answer

P0406 code for 1994 buick lesabre


DTC P0406 Exhaust Gas Recirculation Sensor A Circuit High.

You in fact do, need to replace the EGR valve. P0406 is actually EGR position sensor high code. Which means the PCM recieved a egr position sensor signal greater than 4.89 volts. For some reason the the egr on the 05 minivan had a high failure rate.

The best way to get at the lower bolt after you remove the upper bolt and the two 8mm tube screws, pry the valve rearward. This allows you to get a socket on the lower bolt.

Hope helps (remember to rate and comment this).

Sep 19, 2010 | 1994 Buick LeSabre

1 Answer

Egr engine fault p0406 engine light on


egr flow sensor A curcuit high input---p0406. replace exhaust gas recirculation valve.--EGR-- or clean out carbon from engine side. if this does not work by cleaning, replace egr valve. also check all wire connections.

Oct 12, 2009 | 2005 Dodge Caravan

1 Answer

2005 dodge grand caravan getting code p0406


3.3 engines has the egr valve with transducer.you have to replace the whole unit. code p0406 what its trying to tell you your egr valve circuit is short to ground.it has failed .

Jul 04, 2009 | 2005 Dodge Grand Caravan

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