p1409 Service Engine Soon
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p1409 Service Engine Soon
Hey the other day i was messing around in my truck going down a dirt road with a couple puddles and stuff..... about 2 hours later after i left i was driving my truck when the service engine light came on.. The code is p1409.... EGR did offroading mess something up? or is it a easy fix like something loose? i have a 1999 f150 v6 2wd thanks
5th Wheeling
Joined: Sep 2006
Posts: 35
Likes: 4
Is it EGR insufficient flow,or excessive flow?
what does P1409 exactly mean,I can help you better if you describe it more.
what does P1409 exactly mean,I can help you better if you describe it more.
Originally Posted by bigpapii
Hey the other day i was messing around in my truck going down a dirt road with a couple puddles and stuff..... about 2 hours later after i left i was driving my truck when the service engine light came on.. The code is p1409.... EGR did offroading mess something up? or is it a easy fix like something loose? i have a 1999 f150 v6 2wd thanks
Hotshot
Joined: Jan 2004
Posts: 19,768
Likes: 1,082
From: St Louis
Originally Posted by bigpapii
this is all i know
P1409 = EVR solenoid unplugged or defective, defective PCM, or there is an open circuit between between the PCM and the solenoid.
P1409 = EVR solenoid unplugged or defective, defective PCM, or there is an open circuit between between the PCM and the solenoid.
Post Fiend
Joined: Oct 2004
Posts: 10,418
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From: SpringHill,Fl
check to see if you got dirt or water into the egr valve and it is sticking open or shut
check to see if everything is plugged in (sometimes connector locks break when you disconnect them)
check the wires at the connector...tug lightly on each wire seperately to see if it comes out of the connector
check to see if everything is plugged in (sometimes connector locks break when you disconnect them)
check the wires at the connector...tug lightly on each wire seperately to see if it comes out of the connector
5th Wheeling
Joined: Sep 2006
Posts: 35
Likes: 4
The code means that the PCM is sensing an open in the EVR circuit.
This is what i recommend you do,disconnect the EGR vacuum regulator electrical connector and with a Voltmeter check resistance across the terminals at the EVR.
If you get no continuity,EVR has an open internally,replace it.
If you do get continuity,then disconnect battery then PCM.find out with two pins at the PCM connector are the EVR and check for continuity from PCM to EVR and both wires.
If Both are ok,then PCM is bad.
Simple,isnt it?
Hope that helps
This is what i recommend you do,disconnect the EGR vacuum regulator electrical connector and with a Voltmeter check resistance across the terminals at the EVR.
If you get no continuity,EVR has an open internally,replace it.
If you do get continuity,then disconnect battery then PCM.find out with two pins at the PCM connector are the EVR and check for continuity from PCM to EVR and both wires.
If Both are ok,then PCM is bad.
Simple,isnt it?
Hope that helps
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New User
Joined: Oct 2012
Posts: 1
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I had a p1409 code and I ended up replacing my EGR solenoid valve. Valve apparently had become gummed up and was sticking open (coil resistance was within spec 20-40 ohms). Cost about $25.
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