(03-14-2021, 04:04 PM)Fiddyfoe Wrote: Anybody out there with a 1.4L know where I might easily tap into the intake manifold for a vac gauge? Nothing obvious to me except the brake booster which the gauge mfr says not to do. Looks like a dismount and drill job which seems way too much trouble at this juncture. If I take it off for some other real reason, yeah, but no.I installed the Vanderhall boost gauge, and it works fine. It is easy to connect to the daisy chain of connectors under the cowling (under windshield), which go to all the gauges. I posted about the installation on this forum. FYI, my initial difficulty with installation was due to having a defective gauge, which my dealer said was not the problem - it was. My install was in a 2018 Venice, and I had to cut a new hole in the dash.
(03-14-2021, 05:43 PM)coolwhip Wrote:I’ve been under the cowling several times and noticed no vac lines, of course I was fixing the amp, laying wire for add-ons and hose for my oil press gauge and was somewhat narrow of vision. What on Earth do they go to? Can’t think of anything off the top of my head that needs vac under the cowling. The plenum flap is manual and everything else is electrical exc my oil gauge tubing. Aha, just reread your post and it appears your gauge is electrical? Mine is vac actuated and is non-Vanderhall so I need access to the manifold. I think we may have been talking apples/oranges. My original question still stands. Manifold vac access?(03-14-2021, 04:04 PM)Fiddyfoe Wrote: Anybody out there with a 1.4L know where I might easily tap into the intake manifold for a vac gauge? Nothing obvious to me except the brake booster which the gauge mfr says not to do. Looks like a dismount and drill job which seems way too much trouble at this juncture. If I take it off for some other real reason, yeah, but no.I installed the Vanderhall boost gauge, and it works fine. It is easy to connect to the daisy chain of connectors under the cowling (under windshield), which go to all the gauges. I posted about the installation on this forum. FYI, my initial difficulty with installation was due to having a defective gauge, which my dealer said was not the problem - it was. My install was in a 2018 Venice, and I had to cut a new hole in the dash.
(03-15-2021, 12:53 PM)Trip Wrote: If you looking to install a boost gauge - Under the intake is a black hose with a green stripe - Tap into that.Indeed there is. I tapped into the only one I found and it showed 15 in Hg on startup and 20 after a rev. And there it remained until I unhooked and bled off vac. Apparently it goes to a vac reservoir. No joy. There is, however another short run of vac line hidden just below the R side of the intake manifold and accessible from above. Found the location on a Cruze site. Easy squeezy, unlike the other hose which was only accessible from underneath and with one hand. The hose barbs are a challenge single-handedly as was the butt connector when I had to undo the original hookup. It’s a Bosch gauge and goes to 25 psi and the gauge is a bit off scale on full boost. About $25ish at AutoZone. Ten bucks in brass fittings from Lowes to transition from rubber vac line to the small bore nylon tubing to the gauge. Works like a champ.
