Map sensor type - Geo Metro Forum geometroforum›Metro Tech›Engine Tech & DiagnosticsIf your engine is the 1.0L SOHC I have located my "1994 geo metro complete wiring diagram" and noticed something peculiar. The map sensor wiring is shown as follows: Geo Metro Engine Specifications | It Still Runs Geo Metro Engine Specifications. by The Metro had several engine options in it eight years under the Geo name. From 1989 through 1994, the base 1.0 1994 Geo GEO Metro Parts & Accessories, 1997, 1996, 1995, 1993 wwwarts›GEOGEO Metro Parts and GEO Metro Accessories. Though Geo Metro sported the engine that produces a modest 55 horsepower from 1.0 L, Geo Metro Parts - PartsGeek When you're going to need Geo Metro parts, Engine: 1991 (91) Geo Metro: 1.0L 3 Cyl Naturally Aspirated : 1994 Geo Metro Wheel Bearing. Very Satisfied.