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.)
According to system inspection engine hesitation is caused by fuel system. The purpose of the inspection is to check fuel system.
Check the fuel for excessive water,alcohol,or other contaminations.
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.
