Does a 94 Chevrolet suburban have cam sensor?

Yes, a 1994 Chevrolet Suburban, depending on the engine, will have a Crankshaft Position Sensor (CKP) and likely a Cam Position Sensor (CMP). While the CKP is essential for all engines, the presence of a CMP depends on the specific engine type (e.g., TBI, Vortec). It's highly probable that a 1994 Suburban with a fuel-injected engine would have both sensors.