I have an H22A in a 94 Civic Si, before i got 3 codes. 1) TPS(7), 2) Vtec Solenoid(21), 3) O2 Sensor(41)...... The problem starts now, after i fixed the TPS and changed the Vtec Solenoid it gave me a new code which is EGR Lift Sensor (12) and the other 2 have not still gone (Vtec and O2). Please tell what to do?? and hot to fix it?? To tell you the truth i only enjoy Vtec for the first 2 days when i got the car and its hasnt turned on till now!!!!!