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Discussion Starter · #1 ·
Hey my check engine light came on and i took my car to good ol Auto Zone and they told me it was my ECU valve. He said that it needs to be cleaned and or replaced. Does ne one know where exactly that valve is in the engine? Thanks, Erik
 

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Discussion Starter · #2 ·
The guy said that it had to do with air getting in the car, i dont quite know if that will help, but thats what the guy said. NE thoughts on where it is?
 

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Originally posted by MySablesNameIsBruce@Apr 19 2004, 07:57 PM
i've never heard of that valve, but i've heard of a EGR valve..good luck with that..sorry i wasn't any help <_<
No its not your fault. They gave him the wrong name...... Possibly an IAC valve. AKA Idle Air Control valve, aka idle speed motor, idle air actuator.... etc etc etc....
 

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Do you know what the actual code was? The ECU is another name for the EEC - Electronic Engine Control unit. It practically NEVER goes out, and if it does, the MIL does not come on, the whole car dies. There is no such valve as the ECU valve.

If the light is on now, go back to autozone and ask for the actual code number. The guys at autozone generally know crap about cars - they read what the code means off a little sheet that is sometimes wrong.
 

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if its the IAC valve, its pretty easy to clean, its a little cylinderical looking device with an electrical connector on it, it sits on top of the throttle body. two bolts should get it out, and run some intake cleaner though it. it should be in about that place on your car as well. you can check to see how its working pretty easily. turn on the car and in P or N run the engine up to 3500-4000 rpm, then let off the throttle and watch the tach ( hope you have one! ) if it drops like a rock, you have a bad valve, it should come down gradually. honestly though, I don't think a malfunctioning IAC would cause the SES light to come one, that's supposed to indicate emissions problems, other DTCs don't light the indicator. its quite likely the EGR valve, I know where it is, but I'm not sure how to clean that one up, never been there.
 

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Generally, the DPFE sensor is what goes bad, not the EGR valve. If you look at your rear exhaust manifold, you wil see a tube that goes from the manifold to the upper intake manifold (UIM). This metal tube will have two black rubber hoses that go from it to a black plastic piece that is also bolted on the UIM. This is the DPFE (Differential Pressure Feedback Exhaust Sensor). You can buy this part from Autozone. But do what I posted earlier, and get the actual code first. Knowing the MIL code number will let us know for sure if it is the DPFE, or if it's something else.
 

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Originally posted by silvapain@Apr 19 2004, 10:14 PM
Generally, the DPFE sensor is what goes bad, not the EGR valve. If you look at your rear exhaust manifold, you wil see a tube that goes from the manifold to the upper intake manifold (UIM). This metal tube will have two black rubber hoses that go from it to a black plastic piece that is also bolted on the UIM. This is the DPFE (Differential Pressure Feedback Exhaust Sensor). You can buy this part from Autozone. But do what I posted earlier, and get the actual code first. Knowing the MIL code number will let us know for sure if it is the DPFE, or if it's something else.
Isn't it Delta pressure feedback egr sensor?
 

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Discussion Starter · #11 ·
Yea i took the car back, becuase earlier i had a young teen who checked my car, and he as i both got confused on what was exactly wrong. It was the EGR VALVE. most likely clogged up with carbon or something but thats what he told me. So do you guys know were the EGR valve is or should i drop the 40 dollars down and get a new one?!?!
 
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no no no no no.....don't get a new one

just clean it, you're seriously gonna have to clean it like four of five times..and if your check engine light doesn't go off...have someone reset it, drive the car around and see if it comes back on. if it does, clean it once more...and if it does come back on...which it shouldn't..i think that there's a senor u might want to replace..i'll get back to u on that.
 

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Discussion Starter · #13 ·
Yea exactly its fun doing things the hard way. Now the question i have for you is where is the darn Egr valve?
 

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Follow the 3/8" metal tube that goes from your rear exhaust manifold up to the Upper Intake Manifold. The EGR valve is the metal disk thing that the tube connects to on the UIM. But I can almost garauntee you that your EGR valve is fine. It is probably the DPFE. The DPFE goes out wuite often on the Gen III taurus.

If you DO decide to clean your EGR valve be very careful not to break the EGR tube. It is very fragile, and you will have to pay like $40 from a dealer to get a new one. Autozone doesn't carry them, and junkyards won't sell them because they can't get them off without breaking them. Good luck man.
 

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Discussion Starter · #15 ·
DPFE ??????? what is this exactly?
 

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Originally posted by silvapain@Apr 19 2004, 09:14 PM
Generally, the DPFE sensor is what goes bad, not the EGR valve.  If you look at your rear exhaust manifold, you wil see a tube that goes from the manifold to the upper intake manifold (UIM).  This metal tube will have two black rubber hoses that go from it to a black plastic piece that is also bolted on the UIM.  This is the DPFE (Differential Pressure Feedback Exhaust Sensor).  You can buy this part from Autozone.  But do what I posted earlier, and get the actual code first.  Knowing the MIL code number will let us know for sure if it is the DPFE, or if it's something else.
same thing I posted earlier. It is the sensor that determines when the EGR valve should open. IF you are getting a code that the valve is stuck open or closed, it is probably this sensor. It has a tendancy to go bad on the taurus.
 
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