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  #16 (permalink)  
Old 09-08-2013, 06:54 PM
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hmm,

kinda sucks when u burn gas cause the new parts u fork out cash for are defective................

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  #17 (permalink)  
Old 09-08-2013, 06:58 PM
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Thats what I am thinking. Get another Regulator. Check that first. Verify it will open the valve when you ground the solenoid.
If it does, test drive and check for codes.
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Old 09-08-2013, 07:53 PM
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Originally Posted by LATECH View Post
Thats what I am thinking. Get another Regulator. Check that first. Verify it will open the valve when you ground the solenoid.
If it does, test drive and check for codes.
not to beat a dead horse, but i quickly checked the old solenoid i had before and it had the exact behavior, no noise, small ( very small ) arc being formed while i rub the lead on the throttle body no reaction to the motor
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Old 09-08-2013, 08:02 PM
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Check the vacuum line with a vacuum gauge when you energize the solenoid , that will tell you if it is opening. Also check to be sure you have a vacuum supply to the solenoid.
Bypass the solenoid with a vacuum hose straight to the EGR to check that it works.
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Old 09-08-2013, 08:04 PM
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Ohm the solenoids. They should be between 26-40 ohms. p1409 is a circuit problem .
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Old 09-08-2013, 08:17 PM
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Check the vacuum line with a vacuum gauge when you energize the solenoid , that will tell you if it is opening. Also check to be sure you have a vacuum supply to the solenoid.
Bypass the solenoid with a vacuum hose straight to the EGR to check that it works.

if i pull vacuum through the egr with my lips the motor dies quick...

old solenoid was 37 ohm, new 35

i checked the vacuum source and the tubes are fine and lovely. the mail source is from a tandem port on the side of the throttle body.
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Old 09-08-2013, 08:28 PM
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does the regualtor(solenoid) have battery voltage at the connector, or is it less than battery voltage?
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Old 09-08-2013, 08:54 PM
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Try running 2 wires right from the battery to the regulator solenoid.Be sure to unplug the vehicle harness for safety and observe polarity. Do this with the engine running to see if it opens the EGR valve (motor will stall down) Dont keep the solenoid hooked up to straight power for too long. A few seconds is OK. Just enough to determine that the proper voltage and ground will operate it.
Gotta sign off. Its late here in Pa. I'll check on you tomorrow.
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Old 09-08-2013, 09:16 PM
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the connector showed 12.10 volts when i tested it earlier today...

when u say vehicle harness,do you mean like the pcm cluster ????
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Old 09-09-2013, 10:46 AM
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i got to work early and hooked up wires to the solenoid( from the battery) i watched a very small arc form if id flirt with the tabs, the motor did not change in any way......

i think i received a brand new defective part.............................................. ....
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Old 09-09-2013, 04:20 PM
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I amleaning in that direction too.
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Old 09-17-2013, 03:08 PM
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so,i wanted to ensure my issue was the evr so i drove the truck for a couple days. the truck for those days ONLY gave a 1409...

this morning, went to oriley, talked to a guy who didnt know what my part was be insisted it wasnt defective and after a few minutes of squabbling words, i got a new evr,

put it in the truck, cleared the codes, drove it 8 miles and received the 0401.

still not sure whats going on, but i dont like it =[
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Old 09-17-2013, 04:46 PM
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p1401 is a low EGR flow . The vavle could be not opening far enough,the passageway could be partly blocked , or it is possible the DPFE sensor is not registering any change or flow, The DPFE tubes could also be blocked.
You need to do a live data scan and look at the DPFE voltage (The DPFE is the EGR flow sensor, it measures what the EGR is flowing).
It should be around .94 -1.04 at idle (with no flow) and when in gear and driving at cruise it should go up.
The good news is that the valve is now opening, and the reg solenoid must be working.
Be sure the valve works properly, and holds vacuum. If it leaks vacuum it wont open far enough either.
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Old 09-17-2013, 06:50 PM
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Quote:
Originally Posted by LATECH View Post
p1401 is a low EGR flow . The vavle could be not opening far enough,the passageway could be partly blocked , or it is possible the DPFE sensor is not registering any change or flow, The DPFE tubes could also be blocked.
You need to do a live data scan and look at the DPFE voltage (The DPFE is the EGR flow sensor, it measures what the EGR is flowing).
It should be around .94 -1.04 at idle (with no flow) and when in gear and driving at cruise it should go up.
The good news is that the valve is now opening, and the reg solenoid must be working.
Be sure the valve works properly, and holds vacuum. If it leaks vacuum it wont open far enough either.

i started the truck and hooked the vacuum source to the evr boot to a vacuum gauge and dropped the truck in gear, did a brake stand to 1500 rpm and saw no change in vacuum. went on a hunt and noticed a hose in a cluster of vacuum fittings was leaking if i purged the main hose off the TB, started fiddling and tightened a few things up, fitted a few hoses better hopefully things will work a tad better... only time and obd2 scanners will tell lol
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