System Inspection

System Inspection

1. Air clog check
(1) Check "Air intake system"
> Check clog of air-cleaner.
> Check deterioration or contamination on throttle body and gasket.
> Check contamination, damage, stuck or clog on intake manifold, PCSV, ISCA and injectors.
(2) Is there any problem ?
YES
1) Repair as necessary and go to "Verification of vehicle Repair" procedure
NO
1) Go to "Fuel pressure check" procedure.
2. Fuel pressure check
(1) Key "OFF".
(2) Disconnect a fuel pump relay.
(3) Engine start and wait until engine stop. and then key "OFF".
(4) Connect a fuel pump relay.
(5) Connect a fuel pressure gauge to a fuel filter by a fuel pressure gauge adaptor.
(6) Engine start and measure a fuel pressure.
A. Specification : Approx. 3.5 kg/cm2




(7) Is the fuel pressure normal ?
YES
1) Go to "Component inspection" procedure.
NO
1) Check clog of the valve in a fuel pressure regulator. (If it has a problem, fuel happen to be leaked to a return line.)
Check the supply pressure of fuel pump.
Repair as necessary and go to "Verification of vehicle Repair" procedure