My 1998 EV left me stranded at the Arkansas rally last month. FPR developed a leak in the diaphragm, with fuel leaking on the engine. Not good.
A little research revealed that all F.I. California and Quota models used the same regulators from 1993 to about 2003 when in-tank fuel pumps were used.
Should be plenty of new ones to be had. Noooooo. And reasonably priced. Nooooo. Found one at about $180 + shipping - if in stock.
A little more research revealed that the MG/Weber regulator was set to deliver fuel to the injectors at 2.5 bars, the fuel pump at 3.0 bars and up to the regulator. Above 5 bars, a check valve opened up in the fuel tank/pump recirculation connection.
In short, I found a regulator used in auto applications, for all purposes, identical to the Weber specs--- 2.5 bars, hose nipples are the same sizes with tank return. Mounting will be different but zip ties will do the trick. I had planned to replace all fuel lines so location won't be a problem.
I'll report back later after installation but it'll be awhile. The Quota runs just fine for now.
PR-159 on right.
BTW, the regulator part # PR-159 made/marketed by several manufacturers. About $50+/-.