Can someone ID this part?
Thread Starter
Burning Brakes
Joined: Dec 2004
Posts: 918
Likes: 5
From: Gainesville FL
Can someone ID this part?
While tightening the thermostat housing bolts, I had to take the electrical connection (two wires) off this part. It looks like it's supposed to have vacuum lines connected as well, but I didn't find any hoses laying around that might correspond. The part is on a bracket that sits under the back thermostat housing bolt, but it doesn't seem to be connected to anything else as far as I can see.
What is this part, and what are the consequences of not having its hoses disconnected? The car seems to be running fine with no check engine light or codes as far as I can tell.
What is this part, and what are the consequences of not having its hoses disconnected? The car seems to be running fine with no check engine light or codes as far as I can tell.
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
While tightening the thermostat housing bolts, I had to take the electrical connection (two wires) off this part. It looks like it's supposed to have vacuum lines connected as well, but I didn't find any hoses laying around that might correspond. The part is on a bracket that sits under the back thermostat housing bolt, but it doesn't seem to be connected to anything else as far as I can see.
What is this part, and what are the consequences of not having its hoses disconnected? The car seems to be running fine with no check engine light or codes as far as I can tell.
What is this part, and what are the consequences of not having its hoses disconnected? The car seems to be running fine with no check engine light or codes as far as I can tell.
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Drifting
Joined: Apr 2007
Posts: 1,339
Likes: 2
From: port charlotte fl
It is the egr vacuum solenoid.Do you have an egr valve?If so this should be connected.If not the egr inlet should have a blank plate on it.If it's not gone already you can also remove the egr pipe from the exhaust to the manifold and the temp sensor.And the air pump along with the cats 'cause by now your not going to pass emissions if you have them.Oh and the air injection pipes on the top of each manifold can go as well.Cleans it up pretty good.
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
It is the egr vacuum solenoid.Do you have an egr valve?If so this should be connected.If not the egr inlet should have a blank plate on it.If it's not gone already you can also remove the egr pipe from the exhaust to the manifold and the temp sensor.And the air pump along with the cats 'cause by now your not going to pass emissions if you have them.Oh and the air injection pipes on the top of each manifold can go as well.Cleans it up pretty good.
FWIW, passing emissions without an EGR in many states is possible with a good tune. Just don't let the car idle for a long time before going to inspection.
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Le Mans Master
Joined: Jan 2003
Posts: 5,858
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From: Santa Maria CA
EGR solenoid.
One of the ports (the left one) connects via a hard vacuum line to the bottom of the TB. Check the small vacuum port on the bottom of your TB. This is the EGR valve's vacuum source. The other port goes directly to the EGR valve itself, which is mounted on the intake base below the plenum.
One of the ports (the left one) connects via a hard vacuum line to the bottom of the TB. Check the small vacuum port on the bottom of your TB. This is the EGR valve's vacuum source. The other port goes directly to the EGR valve itself, which is mounted on the intake base below the plenum.
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
EGR solenoid.
One of the ports (the left one) connects via a hard vacuum line to the bottom of the TB. Check the small vacuum port on the bottom of your TB. This is the EGR valve's vacuum source. The other port goes directly to the EGR valve itself, which is mounted on the intake base below the plenum.
One of the ports (the left one) connects via a hard vacuum line to the bottom of the TB. Check the small vacuum port on the bottom of your TB. This is the EGR valve's vacuum source. The other port goes directly to the EGR valve itself, which is mounted on the intake base below the plenum.
What is the electrical connection?
I know I know, look in the FSM......I'm just that lazy/busy. It's supposed to snow later so I'll be trapped in the house, I'll look then.
Team Owner
Joined: Jan 2003
Posts: 20,322
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From: Summerland B.C. Canada
Yes, cap the TB port and tape/hide the wires, the rest can go bye bye.
Melting Slicks
Joined: Aug 2004
Posts: 2,914
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From: Oakbank Manitoba
That vacuum source on the bottom of the throttle body also feeds the charcoal cannister. Is this also removed? It is used to time when the throttle body draws the vapors in from the cannister thru the large tube connected to the passenger side of the throttle body.
Team Owner
Joined: Jan 2003
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From: Summerland B.C. Canada
Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
I was thinking that you (the OP) connected the hose that goes to the EGR solenoid straight to the EGR valve and that is why it appears that you aren't missing anything.
But Agent 86s diagram makes it appear too far away to do this without you noticing.
Can anyone verify if my theory is plausible?
But Agent 86s diagram makes it appear too far away to do this without you noticing.
Can anyone verify if my theory is plausible?
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
I was thinking that you (the OP) connected the hose that goes to the EGR solenoid straight to the EGR valve and that is why it appears that you aren't missing anything.
But Agent 86s diagram makes it appear too far away to do this without you noticing.
Can anyone verify if my theory is plausible?
But Agent 86s diagram makes it appear too far away to do this without you noticing.
Can anyone verify if my theory is plausible?
Le Mans Master
Joined: May 2006
Posts: 9,226
Likes: 9
From: Irvine Ca
^^then he would have to have that whole loop deleted and the T going to the EGR Loop completely gone.......then that line goes straight to that item identified as a "Fitting" on A86s diagram.
I don't really know, I am just guessing on how a complete vacuum line is not hooked up and nothing is hanging loose.
I don't really know, I am just guessing on how a complete vacuum line is not hooked up and nothing is hanging loose.
Team Owner
Joined: Oct 2004
Posts: 35,065
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
That's what I have. It feeds the canister. I looked at it physically and it looks as if I can just eliminate the solenoid connections and cap it, keeping the canister hooked up.
Thanks.
Melting Slicks
Joined: Aug 2004
Posts: 2,914
Likes: 229
From: Oakbank Manitoba
You must change to a vented gas cap if you do this. I would leave it hooked up as your garage might have a slight gas smell if using a vented gas cap. There is no performance improvement in eliminating the charcoal cannister.