Ford Falcon. Manual - part 215
303-14-74
Powertrain Control Management
303-14-74
DIAGNOSIS AND TESTING (Continued)
DTC
Description
Possible Causes
P0174
Fuel System too lean (bank
FUEL SYSTEM CONDITION
INTAKE AIR CONDITION
KOEO, KOER 2-V8)
External leak at fuel injectors, Defective positive crankcase
Cont
DTC P0174 is reported to
externally leaking fuel
ventilation system, faulty
indicate the air fuel ratio is
pressure regulator, leaking
Evaporative Purge (EVAP)
incorrect, too lean. The
fuel rail, inadequate pressure
Canister or Solenoid
adaptive fuel control system
from fuel pump, fuel injectors
ELECTRICAL CONDITION
has reached the limit of
contaminated with foreign
Heated Exhaust Gas Oxygen
available mixture correction. material, blocked or restricted Sensor (HO2S) signal shorted
fuel filter
to ground; moisture in
harness connectors, blown
CAUTION: A leaking
HO2S heater fuse
fuel system poses a
OTHER CONDITION
potential fire hazard.
Leaking exhaust system; leak
at manifold slip joint, leaking
SENSOR CONDITION
joint between engine pipe and
Sensor damaged or faulty
catalyst converter, leak at
engine pipe to manifold joint,
damaged or leaking exhaust
P0175
Fuel System too rich (bank
FUEL SYSTEM CONDITION
INTAKE AIR CONDITION
KOEO, KOER 2-V8)
Internally leaking fuel
faulty or damaged
Cont
DTC P0175 is reported to
injectors, damaged fuel
Evaporative Canister Purge
indicate the air fuel ratio is
pressure regulator, obstructed Solenoid (EVAP) <CAN> P,
incorrect, too rich. The
fuel return line, low or no
EVAP canister saturated with
adaptive fuel control system
vacuum to fuel pressure
fuel
has reached the limit of
regulator; leaking, damaged
ELECTRICAL CONDITION
available mixture correction. or missing vacuum hose to
Heated Exhaust Gas Oxygen
fuel pressure regulator.
Sensor (HO2S) signal shorted
to Vehicle Power (VPWR),
CAUTION: A leaking
blown HO2S heater fuse.
fuel system poses a
OTHER CONDITION
potential fire hazard.
restricted exhaust system,
Engine Cylinder Head
SENSOR CONDITION
Temperature Sensor (CHT) or
Sensor damaged or faulty.
cooling system fault
P0196
ngine Oil Temperature
SENSOR CONDITION
ELECTRICAL CONDITION
KOER
Sensor Circuit
Sensor damaged or faulty;
Improper wiring connection to
Range/Performance
sensor. EOT wiring circuit
EDTC P0196 is reported if
shorted to VPWR, VREF or
the EOT Sensor temperature
PWRGND.
is inconsistent with engine
OTHER CONDITION
temperature.
CHT sensor faulty.
P0201
Injector Circuit / Open -
ELECTRICAL CONDITION
OTHER CONDITION
KOEO, KOER Cylinder 1
Improper connection, injector
Faulty fuel injector; fuel
Cont
DTC P0201 is reported if the shorted to ground or Vehicle
injector field coil not
fuel injector for cylinder 1 is
Power (VPWR), short or open continuous
malfunctioning or fails the
circuit in injector coil
KOEO self-test
P0203
Injector Circuit / Open -
ELECTRICAL CONDITION
OTHER CONDITION
KOEO, KOER Cylinder 3
Improper connection, injector
Faulty fuel injector; fuel
Cont
DTC P0203 is reported if the shorted to ground or Vehicle
injector field coil not
fuel injector for cylinder 3 is
Power (VPWR), short or open continuous
malfunctioning or fails the
circuit in injector coil
KOEO self-test
G98120 en