WARNING:
Hot engines and oil can cause severe burns. Be careful not to burn yourself during removal/installation of each component.
Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the “Fuel Line Safety Procedure”..
1. Verify that the battery is fully charged..
Recharge it if necessary..
2. Warm up the engine to the normal operating temperature.
3. Perform “Fuel Line Safety Procedures”..
4. Remove the following parts.
a. Plug hole plate..
b. Ignition coil/ion sensors..
c. Spark plugs..
d. Fuel pump relay
e. Fuel injector relay
5. Measure the compression pressure using the following procedure.
a. Press a compression gauge into the spark plug hole.

b. Fully depress the accelerator pedal.
c. Crank the engine and measure the compression pressure.
Standard: 885 kPa {9.02 kgf/cm2, 128 psi} [300 rpm]
Minimum: 708 kPa {7.22 kgf/cm2, 103 psi} [300 rpm]
Maximum difference between cylinders: 150 kPa {1.53 kgf/cm2, 21.8 psi}
NOTE:
Because the SKYACTIV-G 2.0 retards the intake valve closing timing, compression pressure is low.
d. Perform Steps (1) to (3) for all cylinders.
e. If it is less than the minimum specification, or there is a cylinder with a maximum value that exceeds the other cylinders, add a small quantity of engine oil through the spark plug hole and perform Steps (1) to (3).
If the pressure increases by adding the engine oil, the piston ring or the cylinder surface is worn, or they are damaged. Perform overhaul servicing.
If the pressure does not increase, valve seizure, valve attachment malfunction, or pressure leakage from the cylinder head gasket might be occurring. Perform overhaul servicing.
f. If the measured value is high, it is possible that there is an error in the electric variable valve timing system.
6. Remove the compression gauge.
7. Install the following parts.
a. Fuel injector relay
b. Fuel pump relay
c. Spark plugs..
d. Ignition coil/ion sensors..
e. Plug hole plate..
General
Compression InspectionSpark Plug Inspection [Skyactiv G 2.0]
Specification
Spark plug type
PE01-18110, PE02-18110
Plug Gap Inspection
CAUTION:
To avoid possible damage to the tip, do not adjust the plug gap.
To prevent damaging the tip, use a wire type plug gap gauge when inspecting
the plug gap.
1. Measure the spark p ...
Fuel System
Purpose, Outline
A multiple hole type fuel injector has been adopted which provides higher
fuel injection accuracy for improved fuel efficiency and output.
Piston movement-compression by the 4-head cam inside the high pressure fuel
pump heightens the fuel pressure, achieving imp ...
Refrigerant Pressure Sensor Inspection [Full Auto Air Conditioner]
1. Install the manifold gauge.
2. Verify the high-pressure side reading of the manifold gauge.
3. Measure the terminal voltage at PCM terminal 2BB, 2AX and 2AJ
4. Using the graph below, measure and verify the terminal voltages at 2AX.
5. Follow the PCM inspection when measuring the other te ...