Emissions vacuum spaghetti`
#1
Emissions vacuum spaghetti`
Okay so I have a 1982 Toyota RV (Which is a 1982 Toyota Pickup).
I took a pic of the mostly faded vacuum diagram on the inside of the hood...
When I realize it's for the 20R engine, and right now there's a 22R engine inside (Which I just rebuilt) So either the hood is different, or they put a 22R engine in it.
Now, this engine has the usual spaghetti vacuum hoses, and of course I didn't label a damn thing.
There's even a vacuum switch I've not seen in *any* diagram, yet.
Autozone lists all the vacuum diagrams from 85 on, and I have the 85 FSM and the 83 FSM, but something tells me this 22R might not be an 82, anyway.
I *really* need help with this but I don't know where to turn.


I took a pic of the mostly faded vacuum diagram on the inside of the hood...
When I realize it's for the 20R engine, and right now there's a 22R engine inside (Which I just rebuilt) So either the hood is different, or they put a 22R engine in it.
Now, this engine has the usual spaghetti vacuum hoses, and of course I didn't label a damn thing.
There's even a vacuum switch I've not seen in *any* diagram, yet.
Autozone lists all the vacuum diagrams from 85 on, and I have the 85 FSM and the 83 FSM, but something tells me this 22R might not be an 82, anyway.
I *really* need help with this but I don't know where to turn.


Last edited by thetundrawolf; Feb 22, 2013 at 10:26 AM.
#2
Okay, so I got some good vacuum diagrams for the Celica/ Supra 1982. It solved the upper vacuum issues. I only have one more thing to solve.
I guess it's not an EACV, just an ACV because it's not electronically controlled.
I used a vacuum pump to determine which inlet causes it to divert smog pump air to the exhaust manifold, but there are 3 (!!!) other ports. The picture that Autozone gives shows all the connections except where they connect to the vacuum manifolds on the intake manifold. They give no detailed diagram, only these overviews.

Can anyone help me figure out what goes where on the EACV valve as far as vacuum? I don't have the VSV valve for the EACV (three, or four inlets). Instead, the third nipple on the filter connected to the intake is capped, and the lower right diaphragm on the EACV, right hand nipple has a plug, leaving only four connections for the EACV valve.
Here's the EACV

Here are the four nipples under the intake manifold that need to go to the EACV somehow

Here's the filter at the intake manifold. the third nipple I had to "borrow" to repair one of the thermal VCV's.

Can anyone tell me where this line is supposed to go, the one that has a hose and a bolt connected?
I guess it's not an EACV, just an ACV because it's not electronically controlled.
I used a vacuum pump to determine which inlet causes it to divert smog pump air to the exhaust manifold, but there are 3 (!!!) other ports. The picture that Autozone gives shows all the connections except where they connect to the vacuum manifolds on the intake manifold. They give no detailed diagram, only these overviews.

Can anyone help me figure out what goes where on the EACV valve as far as vacuum? I don't have the VSV valve for the EACV (three, or four inlets). Instead, the third nipple on the filter connected to the intake is capped, and the lower right diaphragm on the EACV, right hand nipple has a plug, leaving only four connections for the EACV valve.
Here's the EACV

Here are the four nipples under the intake manifold that need to go to the EACV somehow

Here's the filter at the intake manifold. the third nipple I had to "borrow" to repair one of the thermal VCV's.

Can anyone tell me where this line is supposed to go, the one that has a hose and a bolt connected?
Last edited by thetundrawolf; Feb 22, 2013 at 06:23 PM.
#3
It looks like the air pump valve is on the lower right of that diagram. It looks like your missing the VSV on the carb that controls the air pump valve. The diagram looks correct for your vintage of truck. The one line you broke off of that filter to fix a vsv looks like it was needed per that diagram.
In your last picture. The line with the bolt in it is a fuel pump return line. Your Toyota fuel pump should have 1 inlet and 2 outlets. My guess it has been converted to electric?
After looking at that mess you have, I'm glad I have an 83 fed/can emissions truck. I have about 1/4 the vacuum routing that you have. I don't have an air pump either, just pulse air injection.
In your last picture. The line with the bolt in it is a fuel pump return line. Your Toyota fuel pump should have 1 inlet and 2 outlets. My guess it has been converted to electric?
After looking at that mess you have, I'm glad I have an 83 fed/can emissions truck. I have about 1/4 the vacuum routing that you have. I don't have an air pump either, just pulse air injection.
#4
It looks like the air pump valve is on the lower right of that diagram. It looks like your missing the VSV on the carb that controls the air pump valve. The diagram looks correct for your vintage of truck. The one line you broke off of that filter to fix a vsv looks like it was needed per that diagram.
In your last picture. The line with the bolt in it is a fuel pump return line. Your Toyota fuel pump should have 1 inlet and 2 outlets. My guess it has been converted to electric?
After looking at that mess you have, I'm glad I have an 83 fed/can emissions truck. I have about 1/4 the vacuum routing that you have. I don't have an air pump either, just pulse air injection.
In your last picture. The line with the bolt in it is a fuel pump return line. Your Toyota fuel pump should have 1 inlet and 2 outlets. My guess it has been converted to electric?
After looking at that mess you have, I'm glad I have an 83 fed/can emissions truck. I have about 1/4 the vacuum routing that you have. I don't have an air pump either, just pulse air injection.
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