Del Sol Si VTEC L4-1590cc 1.6L DOHC (VTEC) MFI (1997)
Radiator Cap: Testing and Inspection
1. Remove the radiator cap, wet its seal with engine coolant, then install it on the pressure tester.
2. Apply a pressure of 95-125 kPa (14-1 8 psi).
3. Check for a drop in pressure.