BMW Cars 1999-06

4.8L V8 - Auto 2

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Trouble Code: P0158



HO2S (Bank 2 Sensor 2) Circuit High Input

Possible Causes:



HO2S signal shorted to the heater power circuit (due to oil or moisture in the connector)
 
HO2S signal circuit shorted to VREF or to system voltage
 

Trouble Code: P0159



HO2S (Bank 2 Sensor 2) Circuit Slow Response

Possible Causes:



HO2S is contaminated (due to presence of silicone in fuel)
 
Leaks present in the exhaust manifold or exhaust pipes
 
HO2S is damaged or has failed
 

Trouble Code: P0160



HO2S (Bank 2 Sensor 2) Circuit No Activity Detected

Possible Causes:



Leaks present in the exhaust manifold or exhaust pipes
 
HO2S signal wire and ground wire crossed in connector
 
HO2S element is fuel contaminated or has failed
 

Trouble Code: P0161



HO2S (Bank 2 Sensor 2) Heater Circuit Malfunction

Possible Causes:



HO2S heater power circuit or the heater ground circuit is open
 
HO2S signal tracking (due to oil or moisture in the connector)
 
HO2S has failed, or the DME has failed
 

Trouble Code: P0201



Cylinder 1 Injector Circuit Malfunction

Possible Causes:



Injector 1 connector is damaged, open or shorted
 
Injector 1 control circuit is open, shorted to ground or to power
 
(the injector driver circuit may be damaged)
 

Trouble Code: P0202



Cylinder 2 Injector Circuit Malfunction

Possible Causes:



Injector 2 connector is damaged, open or shorted
 
Injector 2 control circuit is open, shorted to ground or to power
 
(the injector driver circuit may be damaged)
 

Trouble Code: P0203



Cylinder 3 Injector Circuit Malfunction

Possible Causes:



Injector 3 connector is damaged, open or shorted
 
Injector 3 control circuit is open, shorted to ground or to power
 
(the injector driver circuit may be damaged)
 

Trouble Code: P0204



Cylinder 4 Injector Circuit Malfunction

Possible Causes:



Injector 4 connector is damaged, open or shorted
 
Injector 4 control circuit is open, shorted to ground or to power
 
(the injector driver circuit may be damaged)
 

Trouble Code: P0205



Cylinder 5 Injector Circuit Malfunction

Possible Causes:



Injector 5 connector is damaged, open or shorted
 
Injector 5 control circuit is open, shorted to ground or to power
 
(the injector driver circuit may be damaged)
 

Trouble Code: P0206



Cylinder 6 Injector Circuit Malfunction

Possible Causes:



Injector 6 connector is damaged, open or shorted
 
Injector 6 control circuit is open, shorted to ground or to power
 
(the injector driver circuit may be damaged)
 

Trouble Code: P0221



Throttle Position Sensor 'B' Signal Performance

Possible Causes:



Throttle body is damaged
 
Throttle linkage is binding or sticking
 
ETC TP Sensor 'B' signal circuit to the DME is open
 
ETC TP Sensor 'B' ground circuit is open
 
ETC TP Sensor 'B' is damaged or it has failed
 

Trouble Code: P0222



Throttle Position Sensor 'B' Circuit Low Input

Possible Causes:



ETC TP Sensor 'B' connector is damaged or shorted
 
ETC TP Sensor 'B' signal circuit is shorted to ground
 
ETC TP Sensor 'B' is damaged or it has failed
 

Trouble Code: P0223



Throttle Position Sensor 'B' Circuit High Input

Possible Causes:



ETC TP Sensor 'B' connector is damaged or open
 
ETC TP Sensor 'B' signal circuit is open
 
ETC TP Sensor 'B' signal circuit is shorted to VREF (5v)
 
ETC TP Sensor 'B' is damaged or it has failed
 

Trouble Code: P0261



Cylinder 1 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector 1 control circuit is open
 
Injector 1 power circuit (B+) is open
 
Injector 1 control circuit is shorted to chassis ground
 
Injector 1 is damaged or has failed
 
DME is not connected or has failed
 

Trouble Code: P0262



Cylinder 1 Injector Circuit Low Input/Short to B+

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0264



Cylinder 2 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0265



Cylinder 2 Injector Circuit Low Input/Short to B+

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0267



Cylinder 3 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0268



Cylinder 3 Injector Circuit Low Input/Short to B+

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0270



Cylinder 4 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0271



Cylinder 4 Injector Circuit Low Input/Short to B+

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0273



Cylinder 5 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0276



Cylinder 6 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0277



Cylinder 6 Injector Circuit Low Input/Short to B+

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0279



Cylinder 7 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0280



Cylinder 7 Injector Circuit Low Input/Short to B+

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0282



Cylinder 8 Injector Circuit Low Input/Short to Ground

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0283



Cylinder 8 Injector Circuit Low Input/Short to B+

Possible Causes:



Injector control circuit is open
 
Injector power circuit (B+) is open
 
Injector control circuit is shorted to chassis ground
 
Injector is damaged or has failed
 
DME is not connected or has failed
 
Fuel pump relay has failed
 
Fuel injectors may have malfunctioned
 
Faulty engine speed sensor
 

Trouble Code: P0298



Engine Oil Over Temperature

Possible Causes:



Replace the oil temperature sensor
 
Engine Oil temperature is too high
 
Engine coolant temperature is too high
 
Highest possible gear engaged in transmission
 
Check coolant
 

Trouble Code: P0300



Random/Multiple Misfire Detected

Possible Causes:



Fuel metering fault that affects two or more cylinders
 
Fuel pressure too low or too high, fuel supply contaminated
 
EVAP system problem or the EVAP canister is fuel saturated
 
EGR valve is stuck open or the PCV system has a vacuum leak
 
Ignition system fault (coil, plugs) affecting two or more cylinders
 
MAF sensor contamination (it can cause a very lean condition)
 
Vehicle driven while very low on fuel (less than 1/8 of a tank)
 

Trouble Code: P0301



Cylinder Number 1 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0302



Cylinder Number 2 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0303



Cylinder Number 3 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0304



Cylinder Number 4 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0305



Cylinder Number 5 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0306



Cylinder Number 6 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0307



Cylinder Number 7 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0308



Cylinder Number 8 Misfire Detected

Possible Causes:



Air leak in the intake manifold, or in the EGR or DME system
 
Base engine mechanical problem
 
Fuel delivery component problem (i.e., a contaminated, dirty or sticking fuel injector)
 
Fuel pump relay defective
 
Ignition coil fuses have failed
 
Ignition system problem (dirty damaged coil or plug)
 
Engine speed (RPM) sensor has failed
 
Camshaft position sensors have failed
 
Ignition coil is faulty
 
Spark plugs are not working properly or are not gapped properly
 

Trouble Code: P0325



Knock Sensor 1 Circuit Malfunction

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

Trouble Code: P0327



Knock Sensor 1 Signal Low Input

Possible Causes:



Knock sensor circuit is open
 
Knock sensor is loose (tighten to 20 NM)
 
Contact between the knock sensor and cylinder block is dirty, corroded or greasy
 
Knock sensor circuit is shorted to ground, or shorted to power
 
Knock sensor is damaged or it has failed
 
Wrong kind of fuel used
 
A component in the engine compartment is loose or not properly secured
 

 
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