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Got a question about the vacuum lines that go to the EGR vacuum solenoid.

Old Nov 21, 2001 | 11:50 PM
  #1  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Got a question about the vacuum lines that go to the EGR vacuum solenoid.

Ok, when I switched from my 305 to 355, I got rid of the big single connector that goes to the EGR vacuum solenoid and the crappy plastic vacuum lines and just installed some good rubber vacuum line. I know that one of the vacuum lines from the solenoid goes directly to the EGR valve and the other vacuum line from the solenoid goes to a T that splits off going to the underneath of the TB and also to another T that then goes to the evap canister. Question is ... which port on the solenoid (top or bottom) goes directly to the EGR valve. I think I have it hooked up right but I need to double check because if I don't this could be causing my surging idle.

------------------
1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.
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Old Nov 22, 2001 | 10:38 PM
  #2  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Ok, it's not that hard for someone to go outside and look at theirs for me. I would appreciate it.
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Old Nov 22, 2001 | 11:50 PM
  #3  
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From: Beaufort, SC
Mine's on the left side facine the solenoid. It's not a tpi though. Does it make a diff since it's only a switch anyway??

------------------
85T/A 305/QJ work in progress.
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Old Nov 23, 2001 | 12:06 AM
  #4  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by SgtSkip:
Mine's on the left side facine the solenoid. It's not a tpi though. Does it make a diff since it's only a switch anyway??

</font>
Ok, your connector is kinda L shaped so if you look at that connector and follow it down to the solenoid is that on the top or the bottom.... I think you're talkin' about the top one.

[This message has been edited by 86TpiTransAm (edited November 22, 2001).]
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Old Nov 23, 2001 | 12:37 AM
  #5  
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From: Beaufort, SC
Mine must be sideways or something(most everything on my motor seems to be some sort of hybrid). The solenoid electrical connector is just a 2 pin connector. The hose connector has a tab on one side (right, facing the solenoid) and that side is going to the EGR valve. I was mistaken in my last post. The orientation of the solenoid is horizontal.

------------------
85T/A 305/QJ work in progress.
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Old Nov 23, 2001 | 11:40 AM
  #6  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by SgtSkip:
Mine must be sideways or something(most everything on my motor seems to be some sort of hybrid). The solenoid electrical connector is just a 2 pin connector. The hose connector has a tab on one side (right, facing the solenoid) and that side is going to the EGR valve. I was mistaken in my last post. The orientation of the solenoid is horizontal.

</font>

Thanks but that won't help. My EGR solenoid is oriented vertical..... one vaccuum port is on top of the other. Thanks anyhow.


------------------
1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.
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Old Nov 26, 2001 | 08:53 PM
  #7  
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From: outerspace(maybe..pluto)?
its the one has fuel in it that goes to the fuel rails ...........un-plug it and see what happens

------------------
89 firebird formula


360 10:1compression (350 .060 over)/fully balnced and blueprinted
comp cams xe262 cam
performer rpm intake/port matched to heads
#1405edlebrock 600
sportsman 2 heads 64cc 2.02/1.60 valves 200cc intake runner/cnc pocket ported
msd 6al/msd8.5 super condutor wires
h.e.i. proform 50,000 volt vac. advance ditributor
700r-4 with 3.08 first gear and 3.73 7 5/8 rear end.
b trans shift kit(will kill shifts...suck dong!!)
shorty heddman hedders with custom 3" pipe y-pipe back(no damn cat!) with 40 series flowmaster!
griffin daul1" core rad.cutom fabrication to fit(but no cutting )


future mods: 406 roller REALLY REALLY REALLY RADICAL!!!!!.with lots of NOS
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Old Nov 26, 2001 | 10:12 PM
  #8  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by burnoutrpm:
its the one has fuel in it that goes to the fuel rails ...........un-plug it and see what happens

</font>
Ken, shut up. You're just wasting msg space on the board. Go run your car against that KIA... that's probably all it can beat

------------------
1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.
Reply
Old Nov 26, 2001 | 11:00 PM
  #9  
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From: Hayward, CA
Car: 91 camaro
Engine: 383
Transmission: T56
Fight, fight!!

86Tpi, not gonna go look for ya, it's cold out! But here's how mine's routed--by memory Two vacuum lines coming out the EGR solenoid at the 'L' shaped connector. One goes to the EGR, the other to the throttle body. Then there's a different (bigger) line going from the TB to the charcoal canister. This is for a 91 TPI camaro, or 92 firebird, they're the same. Yours may be different since it's MAF though, and a different year.

------------------
91 Z28
Come see The Vicious...
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Old Nov 27, 2001 | 12:35 AM
  #10  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by ViciousZ:
Fight, fight!!

86Tpi, not gonna go look for ya, it's cold out! But here's how mine's routed--by memory Two vacuum lines coming out the EGR solenoid at the 'L' shaped connector. One goes to the EGR, the other to the throttle body. Then there's a different (bigger) line going from the TB to the charcoal canister. This is for a 91 TPI camaro, or 92 firebird, they're the same. Yours may be different since it's MAF though, and a different year.

</font>
Thanks Michelle, but here's what I'm tryin' find out. The big L shaped connector that goes to the solenoid is actually just two seperate vaccuum lines. During my engine swap I removed that big ugly L thing and the little plastic vaccuum tubing and bought some good rubber vaccuum line. So now I have two seperate vaccuum lines to the solenoid instead of that big ugly L. I know that one of the ports on the solenoid goes directly to the EGR valve and the other one travels up under the plenum into a T and one end of the T goes off and into the bottom of the TB and the other one goes off to the charcoal canister box. Now if you look real closely at your L connector you can tell which port on the solnoid, top or bottom, goes directly to the EGR valve. That's what I need to know.
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Old Nov 27, 2001 | 02:05 AM
  #11  
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I'm not gonna go look either. If you want my .02:

The likeliness of it being the bottom one, just because of how the lines route, is not likely.

I dont think it matters anyway, it blocks flow from one port to the other until it opens, and then allows some or all depending on how far the solenoid is open. I dont think theres a one way valve in there, but I could be wrong.
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Old Nov 27, 2001 | 12:44 PM
  #12  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
Well I have the top one going to the EGR valve and I'm pretty sure that's right.

------------------
1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.
Reply
Old Nov 27, 2001 | 02:01 PM
  #13  
ViciousZ's Avatar
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From: Hayward, CA
Car: 91 camaro
Engine: 383
Transmission: T56
Oh. I would go look for ya, but the camaro doesn't have EGR anymore, and the firebird is in my garage 150 miles away. Guess I'm not much help. Sorry. Are you getting a code 32? If you had them hooked up backward (if it's even possible) I'd think it'd throw a code.

------------------
91 Z28
Come see The Vicious...
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Old Nov 27, 2001 | 07:18 PM
  #14  
86TpiTransAm's Avatar
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From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
<font face="Verdana, Arial" size="2">Originally posted by ViciousZ:
Oh. I would go look for ya, but the camaro doesn't have EGR anymore, and the firebird is in my garage 150 miles away. Guess I'm not much help. Sorry. Are you getting a code 32? If you had them hooked up backward (if it's even possible) I'd think it'd throw a code.

</font>
No code and I'm pretty sure I got them hooked up right. It was just one of those things where I wanted to double check my memory. Thanks Michelle


------------------
1986 Trans AM
355 TPI
4 Wheel Disc Brakes
9 bolt Borg Warner Rear (2.77's....oh joy) :P
6" rods, approx. 9.7:1 Compression, Stock TPI (soon to be ported), 24#/hr LTI injectors (cleaned and flowmatched by Cruizin Performance), Hedman Shorty Headers, 3" exhaust with 80 series flowmaster, SBC 993 heads completely redone and modified for 1.6 RR, 1.52 RR (for now), Comp Cams XE262-14 TPI Cam, Holley AFPR, TPIS airfoil, MSD wires, MSD 6-AL Ignition, Hypertech 53,000 volt coil.

Track times to come.
Reply
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