Prelude L4-2056cc DOHC (1990)
EGR Valve Lift Sensor: Testing and Inspection
A malfunction of the EGR Valve Lift Sensor will normally set a trouble code 12 in the ECU. However, if a malfunction of the EGR Valve Lift
Sensor is suspected, see CODE [12] EXHAUST GAS RECIRCULATION (EGR) under FAULT CODES.