Got the car back from being rebuilt and now when the AC turns on when idling, the idle drops below 500rpm and the car almost stalls.
No issues though if you are driving more than 20km/h or so.
The VSV seems to be missing one of the two hoses. The one from the VSV to the intake manifold is there.
The one from the VSV to the area where the turbo is (general area) is missing.
When the AC runs it makes a high velocity sucking noise.
The missing hose wouldn't be an issue if I could figure out where the hose is supposed to go to.
There isn't any vacuum line ends without a hose on them from the looks of it.
On Partsouq there are diagrams showing the parts but no definitive place that the missing vacuum line from the VSV goes onto. Shown above.
Does anyone have a photo they can show where the AC VSV vacuum lines go from and to please?
SW20 A/C IDLE VSV
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This area is dedicated to technical discussions concerning SW20's. Please try to spell correctly because this will help people find information later if they are using search functionality. If you need assistance with your car and want to host a spanner day, please use the appropriate section of the forum: http://mr2.org.nz/phpbb3/viewforum.php?f=35 Thank you.
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Re: SW20 A/C IDLE VSV
I assume this is a GEN2 3SGTE from the 1989-1993 SW20?
If so there is too much unmetered air getting into the engine when the AC VSV switches on.
So you need to find the pipe/hose that comes from the intake pipe before the turbo and connect the in side of the AC VSV to it.
In the photo below it is the hose the that runs above the Distributor and to the left of the EGR pipe. You won't have an EGR pipe though.
If so there is too much unmetered air getting into the engine when the AC VSV switches on.
So you need to find the pipe/hose that comes from the intake pipe before the turbo and connect the in side of the AC VSV to it.
In the photo below it is the hose the that runs above the Distributor and to the left of the EGR pipe. You won't have an EGR pipe though.
1990 SW20 MR2 G-Limited (GEN4 3SGTE Installed)
2000 AE111R Corolla Wagon NZ New Daily
1996 AE101R Corolla Sprint NZ New Selling Soon
1990 EP81 Starlet XL (Sold)
1990 EE90 Corolla XL (Sold)
Instagram https://www.instagram.com/sw20glimited/
2000 AE111R Corolla Wagon NZ New Daily
1996 AE101R Corolla Sprint NZ New Selling Soon
1990 EP81 Starlet XL (Sold)
1990 EE90 Corolla XL (Sold)
Instagram https://www.instagram.com/sw20glimited/