3.
Check the fuel pressure accelerating engine after engine "ON"
A.
Fuel pressure specification : 360 kpa (3.6kg/cm², 51.2psi)(when vehicle is accelerated ).
If engine stalls intermittently, Perform trouble shooting by approaching classified system. If symptom of the Engine stalling is similar to symptom of poor acceleration, the reason of engine stalling could be fuel system. For that reason fuel system should be checked first. The purpose of inspection is to check fuel pump by measuring fuel pressure and checking power circuit.
IG "OFF"
Install a fuel pressure gauge between the delivery pipe and the fuel feed hose.
Check the fuel pressure accelerating engine after engine "ON"
Fuel pressure specification : 360 kpa (3.6kg/cm², 51.2psi)(when vehicle is accelerated ).
Is fuel pressure within specification when vehicle is accelerated?
YES
Go to Injector Inspection procedure.
NO
Replace the fuel pump assembly.
■ Performance test of fuel pump by ampere meter
1. Install ampere meter to power supply harness of the fuel pump after starting engine.
2. Measure ampere of power supply harness accelerating engine.
Ampere specification : 4.8~5.0 A
