Got a question about the vacuum lines that go to the EGR vacuum solenoid.
Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
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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.
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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.
------------------
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.
Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
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.
Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
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>
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>
[This message has been edited by 86TpiTransAm (edited November 22, 2001).]
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.
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85T/A 305/QJ work in progress.
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85T/A 305/QJ work in progress.
Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
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>
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.
its the one has fuel in it that goes to the fuel rails ...........un-plug it and see what happens 
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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

------------------
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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Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
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>
its the one has fuel in it that goes to the fuel rails ...........un-plug it and see what happens

</font>

------------------
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.
Senior Member
iTrader: (1)
Joined: Nov 1999
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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...
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...
Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
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>
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>
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Posts: n/a
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.
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.
Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
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.
------------------
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.
Senior Member
iTrader: (1)
Joined: Nov 1999
Posts: 893
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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.
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91 Z28
Come see The Vicious...
------------------
91 Z28
Come see The Vicious...
Thread Starter
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
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>
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>
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.
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