EGR question - Can it stay unhooked up.
01-01-2007, 08:34 PM
#1
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EGR question - Can it stay unhooked up.
My 88 gt has had some wacky idle, up down, 750 to 1500. Well I cleaned the air valve thingy on the intake and still had the lopey idle. Pulled the vac line off EGR and now it idles fine now, even the stumble off low rpm is gone. So the valve needs replaced. Can I run with the vac line pluged for a few days or a week???
Tim
Tim
01-01-2007, 08:37 PM
#2
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RE: EGR question - Can it stay unhooked up.
You can leave the vacuum line off, but your problem is not the valve....there should not be vacuum at the EGR valve line @idle. Check your vacuum lines, reads like the EGR valve line is witched with another line...........or you have a problem with the EGR valve regulator (EVR) solenoid.
01-01-2007, 09:09 PM
#4
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RE: EGR question - Can it stay unhooked up.
Make sure I am talkign about the right part. There is a red vac tube going to a round thing behind the pass side of the air intake, where the breather plugs into the intake. The red tubgoes into a rubber elbow that conencts to the thing that I thought was the EGR!?!?!?!? There is good vac pull from the tube which looksliek it has never beenmessed with, dirty as ****, stuf to the round thing pretty good.
01-01-2007, 09:25 PM
#5
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RE: EGR question - Can it stay unhooked up.
The device I speak of is UNDER to the right of #50 on this chart...
https://mustangforums.com/m_563238/tm.htm
I thin it may be #47 caus if you look close you can see the red tub runnign to that area. I guess I need to hook that back up? Huuum, if run so much better when it is unplugged. Even my stumble at low RPM or when I am idling and I goose it woudl stumble then take off. Now it runs like I think it woukld with this vac line off and plugged!
https://mustangforums.com/m_563238/tm.htm
I thin it may be #47 caus if you look close you can see the red tub runnign to that area. I guess I need to hook that back up? Huuum, if run so much better when it is unplugged. Even my stumble at low RPM or when I am idling and I goose it woudl stumble then take off. Now it runs like I think it woukld with this vac line off and plugged!
01-01-2007, 09:28 PM
#6
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RE: EGR question - Can it stay unhooked up.
If I do take the power away from #6, Idle Air Bypass, the cars will shut off. If I hook back up the previously mentioned #47 is hooked up the the crazy idle comes back.
01-02-2007, 10:11 AM
#8
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RE: EGR question - Can it stay unhooked up.
Check the vacuum line routings.....EGR valve is #50....it's normal to have the engine stall when you disconnect the IAC....but no vacuum should be present at the EGR line when the engine's at idle....the following diagrams should help you check the lines.....NOTE: if your '88 was converted to a Mass Air system (not Speed Density)....the vacuum hose to the MAP sensor is not used.....
Hope this helps......
Hope this helps......
01-02-2007, 10:36 AM
#10
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RE: EGR question - Can it stay unhooked up.
ORIGINAL: P Zero
The hell with the EGR
. I cant remember the last time I had a functioning one.
-P.
The hell with the EGR
. I cant remember the last time I had a functioning one.-P.
...I read you....the only problem is when you have to deal with the &%^*#$ emission **** inspections.....