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As I'm doing spring cleaning on my new toy (1992 Facelift Convertible), I found two devices that I can't identify.
They are both on the A bank. The first one is firmly mounted on the side of the intake manifold near the front of the engine. The second on is dangling under the pressure accumulator on the brake. I found this when bleeding the brakes.
They are Nippon Denso. #'s written on them are 184600-1120 and EBC 3731.
On my 94, one is near the front of the A bank intake and is for the fuel pressure regulator / hot start system.
The other is under the intake at rear of the A bank and is for the air switching valve, which controls the air pump distribution (emissions).
Sorry... for some reason I am unable to download the pics.
You can download the workshop doc at https://www.jagdocs.com inexpensive and very valuable. It has detailed diagrams of all the vac lines.
Nathan is correct about the cruise control add on. Mine was on the front of the manifold (I removed it, cruise works fine). Not sure about the one under the accumulator . http://www.kwecars.com/technical/v12...ows-explained/