4.
Check fuel pressure of the fuel pressure gauge. (Check fuel pressure at idle, accelerating and stall test)
A.
Specification : Approx. 375~385 kpa (3.82 ~ 3.92 kg/㎠, 54.3 ~ 55.8 psi ) at idle (Fuel pressure is kept after stopping of engine.)
Engine poor power/acceleration could be caused by blocked fuel line. The purpose of the Inspection is to check fuel line and fuel pump.
IG "OFF"
Install a fuel pressure gauge.
Engine "ON"
Check fuel pressure of the fuel pressure gauge. (Check fuel pressure at idle, accelerating and stall test)
Specification : Approx. 375~385 kpa (3.82 ~ 3.92 kg/㎠, 54.3 ~ 55.8 psi ) at idle (Fuel pressure is kept after stopping of engine.)
Is fuel pressure normal?
YES
Fuel pressure is OK.
NO
Check fuel filter and fuel hose(whether it is blocked or not) and replace fuel pump.
