Chrysler EGR Diagnosis P0406
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Date: 2020-08-05
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Comments and reviews: 10
SirDeanosity
If I am correct, the sensor is 2 wire (rheostat) which then pulls down a resistor that is connected to +5V. Perhaps a simple fix would be to exercise the rheostat wiper by cycling the actuator full open to full closed about 100 times. As for a practical way to do that not sure at the moment, but I am of the electronic ability to do so. Or drill a hole in the thing and shoot some contact cleaner in then plug the hole with a screw.
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If I am correct, the sensor is 2 wire (rheostat) which then pulls down a resistor that is connected to +5V. Perhaps a simple fix would be to exercise the rheostat wiper by cycling the actuator full open to full closed about 100 times. As for a practical way to do that not sure at the moment, but I am of the electronic ability to do so. Or drill a hole in the thing and shoot some contact cleaner in then plug the hole with a screw.
reply
66
Looks like some sort of device (i. e. Rheostat) could vary your voltage to the EGR valve and therefore vary the position of the valve while reading the potentiometer signal going out to the ECM: Just a thought for DIYer's that don't have this
bi-directional scan too.
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Looks like some sort of device (i. e. Rheostat) could vary your voltage to the EGR valve and therefore vary the position of the valve while reading the potentiometer signal going out to the ECM: Just a thought for DIYer's that don't have this
bi-directional scan too.
reply
Justin
2008 T&C 3. 8L van, got code, replaced with a doorman egr valve. Had the battery disconnected so code went away. Couple weeks later code came back? Did I need to reset the code electronically? Help. Perhaps doorman egr valve crap?
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2008 T&C 3. 8L van, got code, replaced with a doorman egr valve. Had the battery disconnected so code went away. Couple weeks later code came back? Did I need to reset the code electronically? Help. Perhaps doorman egr valve crap?
reply
Mike
not sure if you use it but there is a pid search feature on the Autel, click the small rectangle at the top centre of screen, handy when the list is huge and you only want to see pids with egr or o2 for example
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not sure if you use it but there is a pid search feature on the Autel, click the small rectangle at the top centre of screen, handy when the list is huge and you only want to see pids with egr or o2 for example
reply
Vince
I have a question why did u mount your vise on your tool box u have a bench right there your grinders on it mount the vise on the other side
that cracks me up lmao u good people lol
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I have a question why did u mount your vise on your tool box u have a bench right there your grinders on it mount the vise on the other side
that cracks me up lmao u good people lol
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kelly
awesome job MR. O but you tapping the new one so much might break it or shorten it's life lmao great job like always coming from Canada Hooooooah that's army language the Hoooooah part
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awesome job MR. O but you tapping the new one so much might break it or shorten it's life lmao great job like always coming from Canada Hooooooah that's army language the Hoooooah part
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Buddy
Ok my 04 is Pacifica is cutting back on take off if you hold it steady at 2000 rpm in park it also cuts back randomly dies at traffic lights. Is this a sign of a bad egr valve? Thanks
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Ok my 04 is Pacifica is cutting back on take off if you hold it steady at 2000 rpm in park it also cuts back randomly dies at traffic lights. Is this a sign of a bad egr valve? Thanks
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UBBERTANKER
had a caravan once with a broken pin in the conector but you see that when you go to change the valve obviously but most of them end up in oem egr valve being installed
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had a caravan once with a broken pin in the conector but you see that when you go to change the valve obviously but most of them end up in oem egr valve being installed
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Shaun
Have an 07 Jeep Wrangler and I just replace the EGR valve and it still is pulling that same code po406 exhaust gas recirculation sensor A circuit high any recommendations?
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Have an 07 Jeep Wrangler and I just replace the EGR valve and it still is pulling that same code po406 exhaust gas recirculation sensor A circuit high any recommendations?
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wrxnofx
Perhaps a dumb question, but why does the scope pull the voltage down to zero at 6: 25 into the video? I believe you said you were on the signal wire.
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Perhaps a dumb question, but why does the scope pull the voltage down to zero at 6: 25 into the video? I believe you said you were on the signal wire.
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