Jaguar XJ (X350). Service manual — part 898
intake air flow)
HO2S/Catalyst monitor
sensor harness wiring
condition fault
ECM receiving incorrect
signal from one or more
of the following sensors;
ECT, MAF, IAT, IP, EFT,
TP
sensors and circuits listed.
P0174
Left-hand cylinders
combustion too lean
Air intake leak between
MAF sensor and
cylinder head
Fuel filter/system restriction
Fuel injector restriction
Fuel pressure (IP) sensor
failure (low fuel
pressure)
Low fuel pump output
HO2S/Catalyst monitor
sensor harness wiring
condition fault
Fuel temperature (EFT)
sensor fault (low fuel
temperature)
MAF sensor fault (low
intake air flow)
Exhaust leak (before
catalyst)
ECM receiving incorrect
signal from one or more
of the following sensors
- ECT, MAF*, IAT, IP,
EFT, TP.
For intake system,
Intake Air Distribution and
Filtering - VIN Range: G00442-
>G45703 For fuel injector,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703 For
fuel filter and pump,
Fuel Tank and Lines - 4.2L NA V8
- AJV8/4.2L SC V8 - AJV8/3.0L NA
V6 - AJ27/3.5L NA V8 - AJV8, VIN
Range: G00442->G45703 For
fuel pressure sensor,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703 For
HO2S/Catalyst monitor sensor
tests, GO to Pinpoint Test
G258127p10.
GO to Pinpoint Test
G258127p11.
GO to Pinpoint Test
G258127p12.
For exhaust system,
Refer to individual pinpoint tests
for sensors listed. * If this DTC is
flagged, pay particular attention
to the MAF sensor.
P0175
Left-hand cylinders
combustion too rich
Engine misfire
Restricted air filter
Check for "misfire detected"
DTCs (P0300 to P0308) in this
section. For intake system,
Intake Air Distribution and
Leaking fuel injector(s)
Fuel pressure (IP) sensor
failure (high fuel
pressure)
Fuel temperature (EFT)
sensor fault (high fuel
temperature)
MAF sensor fault (high
intake air flow)
HO2S/Catalyst monitor
sensor harness wiring
condition fault
ECM receiving incorrect
signal from one or more
of the following sensors;
ECT, MAF, IAT, IP, EFT,
TP
Filtering - VIN Range: G00442-
>G45703 For fuel injectors, fuel
pressure sensor,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703 Refer
to individual pinpoint tests for
sensors and circuits listed.
P0181
Engine fuel temperature
(EFT) sensor
range/performance
EFT sensor disconnected
EFT sensor to ECM sensing
circuit; high resistance,
open circuit, short
circuit to ground, short
circuit to high voltage
EFT sensor to splice sensor
ground circuit; high
resistance, open circuit
Above normal air flow
through engine
compartment, due to
accident damage and/or
missing panels
EFT sensor failure
For EFT sensor sensing circuit
tests, GO to Pinpoint Test
G258127p34.
For sensor ground tests, GO to
Pinpoint Test G258127p26.
Check the vehicle for panel
damage.
P0182
Engine fuel temperature
(EFT) sensor circuit low
voltage (high
temperature)
EFT sensor to ECM sensing
circuit; short circuit to
ground
EFT sensor to splice sensor
ground circuit; short
circuit
EFT sensor failure
For EFT sensor sensing circuit
tests, GO to Pinpoint Test
G258127p34.
For sensor ground tests, GO to
Pinpoint Test G258127p26.
www.
P0183
Engine fuel temperature
(EFT) sensor circuit high
voltage (low temperature)
EFT sensor disconnected
EFT sensor to ECM sensing
circuit; high resistance,
open circuit, short
circuit to high voltage
EFT sensor to splice sensor
ground circuit; high
resistance, open circuit
EFT sensor failure
For EFT sensor sensing circuit
tests, GO to Pinpoint Test
G258127p34.
For sensor ground tests, GO to
Pinpoint Test G258127p26.
P0191
Fuel rail pressure (FRP)
sensor circuit
range/performance
Fuel filter/system restriction
Fuel system leak
Incorrect fuel pump output
FRP sensor to ECM sensing
circuit; high resistance,
open circuit, short
circuit to ground, short
circuit to high voltage
FRP sensor to splice in
sensor supply circuit;
high resistance, open
circuit
FRP sensor to splice in
sensor ground circuit;
high resistance, open
circuit, short circuit to
ground, short circuit to
high voltage
FRP sensor failure
For fuel filter, pump and lines,
Fuel Tank and Lines - 4.2L NA V8
- AJV8/4.2L SC V8 - AJV8/3.0L NA
V6 - AJ27/3.5L NA V8 - AJV8, VIN
Range: G00442->G45703 For
FRP sensor tests,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703
P0192
Fuel rail pressure (FRP)
sensor circuit low input
FRP sensor disconnected
FRP sensor to ECM sensing
circuit; open circuit or
short circuit to ground
FRP sensor to splice in
sensor supply circuit;
high resistance, open
circuit
FRP sensor failure
For FRP sensor tests,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703
P0193
Fuel rail pressure (FRP)
sensor circuit high input
FRP sensor to ECM wiring
(supply/sense) short
circuit to each other
FRP sensor to ECM sensing
circuit; short circuit to
high voltage
FRP sensor to splice in
sensor ground circuit;
open circuit
FRP sensor failure
For FRP sensor tests,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703
P0196
Engine oil temperature
(EOT) sensor
range/performance
EOT sensor to ECM sensing
circuit; high resistance
when hot, intermittent
high resistance
EOT sensor failure
ECT sensor malfunction
For EOT sensor tests, GO to
Pinpoint Test G258127p13.
Check for ECT sensor DTCs.
P0197
Engine oil temperature
(EOT) sensor low voltage
(high oil temperature)
EOT sensor to ECM sensing
circuit; short circuit to
ground
EOT sensor failure
For EOT sensor tests, GO to
Pinpoint Test G258127p13.
Check for ECT sensor DTCs.
P0198
Engine oil temperature
(EOT) sensor high voltage
(low oil temperature)
EOT sensor disconnected
EOT sensor to ECM sensing
circuit; high resistance,
open circuit or short
circuit to B+ voltage
EOT sensor failure
For EOT sensor tests, GO to
Pinpoint Test G258127p13.
Check for ECT sensor DTCs.
P0201
Fuel injector circuit
malfunction, Cyl 1
Injector disconnected
Injector wiring open or
short circuit
Injector failure
Check injector connections. For
injector circuit tests,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703
P0202
Fuel injector circuit
malfunction, Cyl 2
Injector disconnected
Injector wiring open or
short circuit
Injector failure
Check injector connections. For
injector circuit tests,
Fuel Charging and Controls - VIN
Range: G00442->G45703
Fuel Charging and Controls - VIN
Range: G00442->G45703
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