Checking For Fuel Leaks
WARNING: This page is about a different car, the 1994 Toyota Paseo. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
After replacing fuel system components or performing fuel system maintenance, verify there are no fuel leaks.
Using Diagnosis Check Wire (SST09843-18020), connect Data Link Connector 1 (DLC1) terminals +B and FP. Turn ignition on, with engine off. When fuel return hose is pinched (DO NOT bend hose, as it may cause cracking), fuel pressure within high pressure line will rise to approximately 57 psi (4 kg/cm2 ). Pinch fuel return hose and verify there are no fuel system leaks. When inspection is completed, turn ignition off and remove diagnosis check wire from DLC1.