what is the emissions control auxhillary control what can i do to fix this it had the code 1409 in the diagnostics machine can some one please tell me what i have to do to fix the problem thank you

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Brian
1996 ford ranger xlt
3.0 v6
2 wheel drive

the more info you let us have the better. You need to update your signature and tell us about the truck year etc. does the truck have any other symptoms other than the one code thrown

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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).

Some quick googling and it looks like it's a problem with the EGR sensor, try replacing it.

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2006 Ford Ranger Sport 4.0 2WD on 32x11.50R15s
-3" Doetsch Spindle Lift


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are you thinking the egr pressure feedback sensor? the egr vacuum solenoid? or egr valve position sensor? I would like some more info but those could be the issue........... it could be a vacuum hose issue also..........

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2004 Ext Cab, 4WD, 4.0, Auto, 154k. (4.0 engine is out of a 2009 Ranger w/96k) ( as of 7/1/2017)

2004 Ranger, Ext Cab, 2WD, 3.0, 5 speed , 4WABS, crank windows, no cruise, Edge 116k.(6/5,2014) (SOLD).
1999 Ford Ranger, Reg Cab, 2.5, 5 speed, 2WD, no AC, 150k (SOLD).