2007 > 2.7L V6 GASOLINE >
DESCRIPTION
1.Engine is hard to start or does not start at all.
2. Unstable idle.
3. Poor driveability
If any of the above conditions are noted, first perform a routine diagnosis that includes basic engine checks (ignition
system malfunction, incorrect engine adjustment, etc.). Then, inspect the Gasoline Engine Control system components
with the HI- SCAN (Pro).
a. Before removing or installing any part, read the diagnostic trouble codes and then disconnect the battery
negative ( - ) terminal.
b. Before disconnecting the cable from battery terminal, turn the ignition switch to OFF. Removal or connection
of the battery cable during engine operation or while the ignition switch is ON could cause damage to the
ECM.
c. The control harnesses between the ECM and heated oxygen sensor are shielded with the shielded ground
wires to the body in order to prevent the influence of ignition noises and radio interference. When the shielded
wire is faulty, the control harness must be replaced.
d. When checking the generator for the charging state, do not disconnect the battery '+' terminal to prevent the
ECM from damage due to the voltage.
e. When charging the battery with the external charger, disconnect the vehicle side battery terminals to prevent
damage to the ECM.
Malfunction Indicator Lamp (MIL)
Faults with the following items will illuminate the MIL.
a. Catalyst
b. Fuel system
c. Mass Air Flow Sensor (MAFS)
d. Intake Air Temperature Sensor (IATS)
e. Engine Coolant Temperature Sensor (ECTS)
f. Throttle Position Sensor (TPS)
g. Upstream Oxygen Sensor
h. Upstream Oxygen Sensor Heater
i. Downstream Oxygen Sensor
j. Downstream Oxygen Sensor Heater
k. Injector
l. Misfire
m. Crankshaft Position Sensor (CKPS)
n. Camshaft Position Sensor (CMPS)
o. Evaporative Emission Control System
p. Vehicle Speed Sensor (VSS)
q. Idle Speed Control Actuator (ISCA)
r. Power Supply
s. ECM/ PCM
t. MT/AT Encoding
u. Acceleration Sensor
v. MIL- on Request Signal
w. Power Stage
Refer to "INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES (DTC)" for more information.
