Control Pressure Check (Cold Engine)

Fig. 18 Control pressure specifications (cold engine):

1. Open tap of pressure gauge apparatus.
2. Pressurize fuel system using test harness switch 8.0141 P.
3. Check that cold engine control pressure is within range shown in Fig. 18. Control pressure regulator contains a barometric capsule (altitude corrector) which must be taken into account when reading test pressures.
4. Control pressure regulator cannot be adjusted. If pressure is incorrect, repeat test with new pressure regulator. A control pressure reading which is too high may be caused by a pinched hose, kinked line, or clogged passage.