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11-06-2011, 04:18 PM
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#1 | | Registered User
Join Date: Oct 2011
Posts: 57
| Vacuum routing diagram
Alright I've looked through all the forums. Had a slight intake popping the other morning I'm guessing vacuum issues. Other than that car's running great. There's a sensor on the firewall that looks like it did have a vac line to it. And the fuel pressure regulator doesn't have one running to it so it might be after market I'm not sure.
Any thoughts or insight would be greatly appreciated
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11-06-2011, 07:44 PM
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#2 | | Registered User
Join Date: Jan 2011
Posts: 169
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Sensor on the firewall depending which one your looking at is the barometric pressure switch. The fuel pressure regulator even if aftermarket should have a vacuum line running to it.
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11-06-2011, 08:08 PM
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#3 | | Senior Member
Join Date: Apr 2011
Posts: 8,086
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Here's a couple diagrams
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11-06-2011, 08:11 PM
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#4 | | Senior Member
Join Date: Apr 2011
Posts: 8,086
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I don't remember where I got them online but I just took a pic of them with my phone.hope quality is ok.
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11-07-2011, 08:28 AM
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#5 | | Registered User
Join Date: Oct 2011
Posts: 57
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Thanks that should work perfect
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11-07-2011, 09:31 AM
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#6 | | Registered User
Join Date: Oct 2011
Posts: 57
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Just read two conflicting articles my car is an 88 that apparently has been converted to maf with a 92 ECM
Do I need vacuum on the map sensor?
And what is this does it need it vac line?  | |
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11-07-2011, 06:01 PM
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#7 | | Senior Member
Join Date: Apr 2011
Posts: 8,086
| Quote: |
Originally Posted by Tj88mustang Just read two conflicting articles my car is an 88 that apparently has been converted to maf with a 92 ECM
Do I need vacuum on the map sensor?
And what is this does it need it vac line?
| with a maf conversion you should have the vacuum disconected from the map sensor.the port on the sensor should be open and the line itself should be plugged.
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11-07-2011, 06:10 PM
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#8 | | Moderator
Join Date: Jan 2011
Posts: 3,392
| Quote: |
Originally Posted by Tj88mustang Just read two conflicting articles my car is an 88 that apparently has been converted to maf with a 92 ECM
Do I need vacuum on the map sensor?
And what is this does it need it vac line?
| That is your egr valve. It is supposed to have a vacuum line from the solenoid attached to it.
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11-07-2011, 06:16 PM
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#9 | | Registered User
Join Date: Oct 2011
Posts: 57
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I've been reading alot about that with the smog stuff gone the egr,the piping from the heads and exhaust can all be discarded and plugged correct ?
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11-07-2011, 06:32 PM
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#10 | | Moderator
Join Date: Jan 2011
Posts: 3,392
| Quote: |
Originally Posted by Tj88mustang I've been reading alot about that with the smog stuff gone the egr,the piping from the heads and exhaust can all be discarded and plugged correct ? | Yes, and you can make a relay to fool the computer for the egr.
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11-07-2011, 07:00 PM
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#11 | | Registered User
Join Date: Oct 2011
Posts: 57
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I think there is a diagram that Trojan posted using resistors.what you think ?
---------- Post added 11-08-2011 at 12:00 AM ---------- Previous post was 11-07-2011 at 11:44 PM ----------
My bad  you posted the resistor diagram have you tried that resistor configuration?
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11-07-2011, 08:07 PM
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#12 | | Moderator
Join Date: Jan 2011
Posts: 3,392
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Mines tuned out, I thought about making one just because though.
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11-09-2011, 06:59 PM
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#13 | | Registered User
Join Date: Jul 2011
Posts: 78
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I have a 92 gt u bought a few months ago. The vacuum lines that go to the egr valve are capped off but the electrical connections are still made. Is there anything that I need to ck and make sure of or is this ok the way they have it. It was already like this when I bought the car.
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11-09-2011, 07:09 PM
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#14 | | Moderator
Join Date: Jan 2011
Posts: 3,392
| Quote: |
Originally Posted by Travis B I have a 92 gt u bought a few months ago. The vacuum lines that go to the egr valve are capped off but the electrical connections are still made. Is there anything that I need to ck and make sure of or is this ok the way they have it. It was already like this when I bought the car. | It will run fine like it is. If you want you can make the egr mil eliminator, it's simple.
---------- Post added at 08:09 PM ---------- Previous post was at 08:09 PM ----------
I would suggest making the eliminator.
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11-10-2011, 02:41 AM
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#15 | | Registered User
Join Date: Jul 2011
Posts: 78
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How do u make the eliminator? Would I be taking the egr valve off?
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11-10-2011, 03:44 AM
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#16 | | Senior Member
Join Date: Jun 2006
Posts: 8,786
| Re: Vacuum routing diagram
Quote:
Originally Posted by Travis B  How do u make the eliminator? Would I be taking the egr valve off? | Yes, you can remove the EGR valve and block off the hole with a plate that you can purchase or fabricate yourself.
Here is how you make the EGR Eliminator.
Solder the resistors together and connect as shown. 
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11-10-2011, 04:01 AM
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#17 | | Registered User
Join Date: Oct 2011
Posts: 57
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Well here is a ? On that same matter if I bought a new throttle body and egr spacer instead of buying the plate what size mm would work for street na motor but would also be good for the single turbo motor I'm building? Can I just put on whatever size the turbo motor needs on my engine that I have now.
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