EVAP Solenoid help please 94 z28 A4
03-12-2013, 11:54 AM
#1
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EVAP Solenoid help please 94 z28 A4
I have looked all over the web and under all forums, even the shop manual on this issue and its driving me nuts. I bought this car not running and pretty much a basket case. Long story short, car is running and has been for a while and I am trying to get the minor details worked out.
The issue: one of the lines was capped off from the solenoid on the passenger side, EVAP Purge solenoid from what I understand. The line to the charcoal canister is hooked up, according to diagram in picture is the bottom line of the solenoid(this is correct). However, the top valve (shown to go to the throttle body, via emissions diagram) has been long disconnected. I am trying to simply figure out which port on the TB that this line goes to. My breather from passenger VC is connected to the top port, and the 2nd port (right underneath top port) is capped off. I am not entirely sure that the the person that hooked this up did this right, and connected the right lines to the right place. Every diagram and picture that I look at does not show exactly where the lines hook up, so this is where I hoped that someone would know.
Thank you for any and all help.
The issue: one of the lines was capped off from the solenoid on the passenger side, EVAP Purge solenoid from what I understand. The line to the charcoal canister is hooked up, according to diagram in picture is the bottom line of the solenoid(this is correct). However, the top valve (shown to go to the throttle body, via emissions diagram) has been long disconnected. I am trying to simply figure out which port on the TB that this line goes to. My breather from passenger VC is connected to the top port, and the 2nd port (right underneath top port) is capped off. I am not entirely sure that the the person that hooked this up did this right, and connected the right lines to the right place. Every diagram and picture that I look at does not show exactly where the lines hook up, so this is where I hoped that someone would know.
Thank you for any and all help.
03-12-2013, 12:18 PM
#2
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Location: Little Rock, AR
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Re: EVAP Solenoid help please 94 z28 A4
Well, the emissions sticker says the CCV hose goes to the top vacuum fitting on the TB, so the EVAP has to go to the other one (just below). It's the only place it can go. There are no other vacuum ports on the TB.
03-12-2013, 01:15 PM
#3
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Re: EVAP Solenoid help please 94 z28 A4
Thats what I thought, just wanted to double verify this. Since both ports look very similar to coolant ports... it can be confusing. Plus I am tracing down a vacuum loss, and this was the first place I wanted to start. Thanks for the help. It really is very hard to find the actual schematic for this, even on SHBOX. All diagrams show cutaways at the TB.
03-14-2013, 08:26 PM
#4
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Posts: 155
Re: EVAP Solenoid help please 94 z28 A4
Shoebox is correct the line connects to the smaller port just under the breather line from the valve cover. On my 95 the hard plastic line comes out of the solenoid then there is a rubber 90 degree hose that connects to the throttle body.
03-15-2013, 09:11 AM
#5
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Location: Kissimmee, Fl, USA
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Re: EVAP Solenoid help please 94 z28 A4
Lol Rob is always correct about this stuff!
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