Fuel Injection System - Cis (8-Valve): Testing: Preparation: Notes

All CIS systems are very sensitive to air leaks. Check condition of rubber boots, hoses and gaskets. Other areas of air leakage are the injector "O" rings, cold start valve, oil filler cap and dipstick.
Install pressure gauge to perform fuel pressure tests. Pressure gauge is installed in line between control pressure regulator and fuel distributor. See Fig 1 .

Fig 1: Pressure Gauge Installation After installation, bleed pressure gauge by opening and closing valve several times.
To operate fuel pump with engine not running, disconnect fuel pump relay from panel. Insert jumper wire into sockets that correspond to terminals No. 30 and 87 on relay. Turn ignition on. Place pressure gauge as low as possible in engine compartment. Open and close valve 5 times to bleed gauge. Place valve in open position and hang out of the way. Turn pump off.