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beepbeep beepbeep is offline
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Join Date: Jun 2001
Location: Sweden
Posts: 5,565
That looks like ordinary 3 bar BTR. SAAB used it on their early K-Jet Turbo cars (in conjunction with electrically operated switch) to drop control pressure at WOT and thus make the engine go richer.

You can connect boost signal (from plenum) to it's nipple BTR will hold pressure @ 3 bar + boost/vacuum.

Is your hose connected? This might be the missing link. If you can connect it you might be able to get consequent behaviour troughout the boost range.

It usually siths on EFI fuel rail and it's primary objective is to hold fuel pressure constant over the injectors regardless of boost. If you connect the nipple to it (assuming it's connected in such way that it helps) it will react to the boost/vacuum and either fix your problem (richen on vaccum, lean on boost) or just make things worse.

It's worth a try. Take a boost signal after the throttle and connect it to BTR nipple. Do a run with AFR.

Thank you for your time,

Last edited by beepbeep; 07-29-2008 at 03:34 PM..
Old 07-29-2008, 03:32 PM
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