2.
Is fuel pressure within the specification?
 | ▶ Go to "fuel remain pressure inspection" procedure as below. |
 | ▶ Repair or replace fuel filter and fuel hose (whether it is blocked or not) ▶ Replace the fuel pump. |
Measure the fuel pressure at idle after installing a fuel pressure gauge to delivery pipe.
☞ Install a fuel pressure gauge after combustion in the fuel line by removing fuel pump relay.
■ Specification : 324 ~ 363 kPa (3.3 ~ 3.7 kgf/㎠, 46.9 ~ 52.6 psi)
Is fuel pressure within the specification?
| ▶ Go to "fuel remain pressure inspection" procedure as below. |
| ▶ Repair or replace fuel filter and fuel hose (whether it is blocked or not) ▶ Replace the fuel pump. |
Monitor fuel pressure at fuel pressure inspection as above.
Engine "STOP"
Check decrease in fuel pressure.
■ Specification : After engine stops, the gage reading should hold for about 5 minutes.
Does the fuel pressure remain after engine stop?
| ▶ Go to "Injector inspection" procedure. |
| ▶ Replace the fuel pump. (Check valve does not remain pressure.) ▶ Repair or replace fuel leakage in the fuel filter and fuel line. |
