Does a 94 integra have knock sensor?

Yes, the 1994 Integra does have a knock sensor. The knock sensor is a device that detects the presence of knocking or pinging sounds in an engine. These sounds are caused by the detonation of fuel in the engine's cylinders, which can damage the engine. The knock sensor sends a signal to the engine's computer, which then adjusts the timing of the ignition to prevent knocking.