Isuzu 1999 RODEO Workshop Manual page 1639

6E2–396
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1171 – Fuel System Lean During Acceleration (Cont'd)
Step
7 1. Ignition "OFF."
2. Remove the fuel pump relay and replace it with a
fused jumper which will connect the relay's battery
terminal to the terminal leading to the fuel pump
fuse.
3. While the fuel pump is operating, use pliers to slowly
close the return line (do not exceed the first
specified value).
Using the pliers to restrict the return line, can the fuel
pressure be manipulated to exceed the second
specified value?
8 Check for:
f
Faulty fuel pump
f
Restricted fuel pump strainer (sock)
f
Incorrect fuel pump
f
Incorrect fuel being used
f
Hot fuel
Is the action complete?
Action Value(s) Yes
414 kPa (60
Go to
psi) 325 kPa
Diagnostic
Aids
(46 psi)
— Verify repair
No
Go to Step 8
—