Egr %
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Junior User
Joined: Feb 2008
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Egr %
Is the EGR valve variable or is it a proportional valve? Assuming that it is proportional what is the range of EGR?
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Thanks
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Rodney
<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com
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<o
></o>Rodney
Post Fiend
Joined: Oct 2005
Posts: 10,626
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From: Plano TX and Brentwood TN
EGR cooler bypass valve commanded duty cycle
EGR DPFE sensor input at the time of misfire
EGR duty cycle
EGR dutycycle to EVR
EGR Monitor
EGR Motor Control
EGR Motor Control
EGR Motor Control
EGR Motor Control
EGR Motor Control Output
EGR Motor Control Output
EGR Motor Control Output
EGR Motor Control Output
EGR Motor Position desired
EGR Output State
EGR Throttle Position Control Signal
EGR Throttle Position voltage
EGR Valve Position
EGR Valve Position desired
EGR Valve Position desired
EGR Valve Position for sonic EGR
EGR/BP Pressure Sensor raw signal
Those are the values that can be measured on the Dashdaq from Ford's computer. I don't know particular values as my EGR is no longer functioning so I never bothered putting those on the screen.
EGR DPFE sensor input at the time of misfire
EGR duty cycle
EGR dutycycle to EVR
EGR Monitor
EGR Motor Control
EGR Motor Control
EGR Motor Control
EGR Motor Control
EGR Motor Control Output
EGR Motor Control Output
EGR Motor Control Output
EGR Motor Control Output
EGR Motor Position desired
EGR Output State
EGR Throttle Position Control Signal
EGR Throttle Position voltage
EGR Valve Position
EGR Valve Position desired
EGR Valve Position desired
EGR Valve Position for sonic EGR
EGR/BP Pressure Sensor raw signal
Those are the values that can be measured on the Dashdaq from Ford's computer. I don't know particular values as my EGR is no longer functioning so I never bothered putting those on the screen.
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Junior User
Joined: Feb 2008
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Elder User
Joined: Jun 2008
Posts: 724
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From: Sarasota, fl
No, it's not in my knowledge. At the intake manifold you should have positive pressure all the time - even if it's 0. Well, some years - like 03-04 and some models has the butterfly valve in them at the intake to help the emission system, but if I good remember, the later flashes disable the valves.
This is why the powerstroke has the vacuum pump, because these engines don't create vacuum.
This is why the powerstroke has the vacuum pump, because these engines don't create vacuum.
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Junior User
Joined: Oct 2007
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The egr valve does have a variable range in which it opens and closes. My Dashhawk has a Command EGR % on one of the screens I set up that it reads from the OBD port. It reads 0% until 160F then once past that temp it is 17% at idle and 23% cruising if I remenber right. When I get on the throttle it goes down real low (closed EGR valve). This is with the inductive heating flash and it doesn't matter if it is all stock, EGR unplugged, or running my tunes w/ EGR off. It reads the same #s either way. I think this reading must be what the FICM is pushing and then the tunes shut it off. Hope this helps. I've been interested in this as well because when I first noticed it I thought they forgot to shut off the EGR in my tunes.
