Isuzu 1999 RODEO Workshop Manual page 721

6E1–94
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
Step
21 Is the fuel pressure indicated by the fuel pressure
gauge above the specified value?
22 1. Command the fuel pump ON with the Tech 2.
2. Using suitable pliers which will not damage the fuel
hose, gradually apply pressure with the pliers to
pinch the flexible fuel return hose closed.
CAUTION: Do not let the fuel pressure exceed
the second specified value.
Does the fuel pressure indicated by the fuel pressure
gauge rise above the first specified value?
23 1. Command the fuel pump ON with the Tech 2.
2. Remove the fuel filler cap and listen for the sound of
the fuel pump running.
3. Turn the pump off.
Was the fuel pump running?
Fuel System Diagnosis (Cont'd)
Action Value(s) Yes
Go to Step 22
0 kPa (0 psi)
414 kPa (60
Go to Step 11
psi)
— Go to Step 7
No
Go to Step 23
Go to Step 7
Go to Fuel
System
Electrical Test
Chart