4.
Check for resistance of plug wires.
a.
Specification:
a.
Primary coil : 0.87Ω ± 10%
b.
Secondary coils : 13.0㏀ ± 15%
c.
Plug wire
NO1 : 4.39~6.59
NO2 : 2.28~3.43
NO3 : 3.49~5.24
NO4 : 1.9 ~2.84 ㏀
Turn ignition switch to OFF and disconnect ignition coil connector.
Check ignition coil and plug wires for cracks or carbon tracing.
Check resistance of primary coil and secondary coils.
Check for resistance of plug wires.
Specification:
Primary coil : 0.87Ω ± 10%
Secondary coils : 13.0㏀ ± 15%
Plug wire
NO1 : 4.39~6.59
NO2 : 2.28~3.43
NO3 : 3.49~5.24
NO4 : 1.9 ~2.84 ㏀
Is the resistance of ignition coils and plug wires within specification?
YES
Go to "SPARK PLUG INSPECTION"
NO
Faulty ignition coils or plug wires
Repair as necessary and go to "Verification of Vehicle Repair"
Check the following items below for spark plug.
Remove spark plugs and check gap and plug condition.
Check the electrode condition(wear or carbon deposit)
Check the insulators condition(crack,etc)
Check the carbon deposit
Specification
gap : 1.0~1.1mm
Are spark plugs gapped properly and in good condition?
YES
Go to "Vacuum & PCV Inspection"
NO
Fauity spark plugs
Repair as necessary and go to "Verification of Vehicle Repair"
Check for any split, disconnected or perforated vacuum hoses. Also, check PCV valve for proper operation.
Remove the positive crankcase ventilation valve.
Insert a thin stick into the positive crankcase ventilation valve from the threaded side to check that the plunger moves.
If the plunger does not move,the positive crankcase ventilation valve is clogged. Clean or replace it.
Are vacuum hoses and PCV okay?
YES
Go to "SYSTEM INSPECTION"
NO
Replace faulty vacuum hoses or PCV
Repair as necessary and go to "Verification of Vehicle Repair"
Reduce the internal pressure of the fuel pipe and hoses and cover the hose connection with a shop towel to prevent splashing of fuel.
Remove the bolt connecting the fuel line to the fuel delivery pipe.
Using the fuel pressure gauge adaptor,install the fuel pressure gauge to the fuel pressure gauge adaptor.
Apply battery voltage to the terminal for thwe pump drive and activate the fuel pump:then,with fuel pressure applied,check fuel leakage from the pressure gauge or connection part.
Start an engine and warm up to operating temperature.
Check for fuel pressure at idle.
Specification
Fuel pressure at idle : 51 psi(350kPa), 3.5kg/㎠
Is fuel pressure within specification?
YES
Go to "Compression test"
NO
Check fuel delivery system
Repair as necessary and go to "Verification of Vehicle Repair"
Perform compression test at 300rpm.
Specification
Approximately : 193 psi(1360kPa),13.5kg/㎠
No more than 10% between highest and lowest cylinder.
Is fuel pressure within specification?
YES
Go to "Verification of Vehicle Repair"
NO
Perform leak down test to determine source of low compression.
Repair as necessary and go to "Verification of Vehicle Repair"
