DR-22B Checking For Low Fuel Pressure

This test must be performed with engine warm.

1. Turn ignition switch Off, then install pressure gauge before fuel filter using adapter C-4799.
2. Turn ignition switch to Run position and press ATM button.
3. If fuel pressure is not five psi higher than recorded previously, replace fuel filter.
4. If fuel pressure still below 53 psi, proceed to Test 22 step C. DR-22C Checking For Low Fuel Pressure