BOV Spring Problems.....
) and it wouldnt open when connected to any vac line on the TB. but works fine off the uim. try some different loactions.
Thread Starter
Joined: Aug 2005
Posts: 2,013
Likes: 1
From: Fairfax/Manassas VA
best sources for blowoff valve vacuum imo:
the lowest nipple on the front of the UIM (upper intake manifold). Out of the four nipples on the front (3 on some cars, I think it depends on the year), hook up the line to the bottom one. And make sure it is really tight on there. Use a tiny hose clamp if you can to prevent boost leaks. I actually have a 3/16" line for my GM 3 bar pressure sensor connected to that nipple with a small hose clamp.
Another option is to drill and tap the ACV (air control valve) blockoff plate if you have it removed. That's where I currently have mine hooked up. It used to compressor surge before under light load when it was hooked to that small nipple on the side of the UIM where the stock pressure sensor is hooked into.
the lowest nipple on the front of the UIM (upper intake manifold). Out of the four nipples on the front (3 on some cars, I think it depends on the year), hook up the line to the bottom one. And make sure it is really tight on there. Use a tiny hose clamp if you can to prevent boost leaks. I actually have a 3/16" line for my GM 3 bar pressure sensor connected to that nipple with a small hose clamp.
Another option is to drill and tap the ACV (air control valve) blockoff plate if you have it removed. That's where I currently have mine hooked up. It used to compressor surge before under light load when it was hooked to that small nipple on the side of the UIM where the stock pressure sensor is hooked into.
Thread Starter
Joined: Aug 2005
Posts: 2,013
Likes: 1
From: Fairfax/Manassas VA
best sources for blowoff valve vacuum imo:
the lowest nipple on the front of the UIM (upper intake manifold). Out of the four nipples on the front (3 on some cars, I think it depends on the year), hook up the line to the bottom one. And make sure it is really tight on there. Use a tiny hose clamp if you can to prevent boost leaks. I actually have a 3/16" line for my GM 3 bar pressure sensor connected to that nipple with a small hose clamp.
Another option is to drill and tap the ACV (air control valve) blockoff plate if you have it removed. That's where I currently have mine hooked up. It used to compressor surge before under light load when it was hooked to that small nipple on the side of the UIM where the stock pressure sensor is hooked into.
the lowest nipple on the front of the UIM (upper intake manifold). Out of the four nipples on the front (3 on some cars, I think it depends on the year), hook up the line to the bottom one. And make sure it is really tight on there. Use a tiny hose clamp if you can to prevent boost leaks. I actually have a 3/16" line for my GM 3 bar pressure sensor connected to that nipple with a small hose clamp.
Another option is to drill and tap the ACV (air control valve) blockoff plate if you have it removed. That's where I currently have mine hooked up. It used to compressor surge before under light load when it was hooked to that small nipple on the side of the UIM where the stock pressure sensor is hooked into.
Last edited by 93rx74lyfe; Mar 2, 2008 at 11:19 PM.
^Hold On
Joined: Mar 2007
Posts: 1,331
Likes: 1
From: eureka
Thread Starter
Joined: Aug 2005
Posts: 2,013
Likes: 1
From: Fairfax/Manassas VA
^Hold On
Joined: Mar 2007
Posts: 1,331
Likes: 1
From: eureka
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/acv-block-off-pressure-senser-delimia-735615/
