Now on to the other 15, try to rotate the engine as little as possible, go in both directions to minimize rotation of the cam after your all done. Use a break-in oil of. P0152 Rear Oxygen Sensor High 74. P0134 Front Oxygen Sensor Inactive. The codes would not clear as long as the ECM was reporting the 2138 code on mine, but they cleared after the throttle reset. Has been a couple of days since I reset my throttle and all is well. General Harley Talk Twin-Cam Engine Religion & Politics Off Topic.
A Harley-Davidson motorcycle engine may sputter and hesitate when a crank position sensor (CKP) starts to fail. The CKP sends data to the motorcycle computer data center about the position and speed of the crankshaft, the ignition and fuel injection. A malfunctioning CKP can cause the engine to backfire due to unburned fuel and hesitate when accelerating. The symptoms of a faulty CKP worsen when the bike is revved up. Contaminated fuel or bad spark plugs can also cause similar problems, so you may need to test the crank position sensor.
Step 1
Turn the key in the ignition to the 'Off' position. Turn the 'Run/Stop' switch to 'Run.' Push and hold the odometer 'Reset' button. Hold the 'Reset' button and do not release it yet.
Step 2
Turn the key to 'Ignition,' but don't start the engine. Release the odometer 'Reset' button. Wait for the odometer to indicate the bike is in diagnostic mode by displaying 'Diag.' Push the odometer reset button and then release it when you see the 'P' in the menu selection flashing.
Wait for the bike to complete the diagnostic of the electronic control module and the ignition control module. Write down the codes that are displayed after the diagnostic is complete. Code PO 374 indicates a failed or faulty crank position sensor due to a synchronization error.
Tips
The following codes are reported for the crank position sensor:
P0373 CKP Sensor Intermittent
P0374 CKP Sensor Not Detected
P0374 CKP Sensor Synch Error EFI
Warning
You cannot service crank position sensors, and you should replace them if faulty or damaged.
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Engine-CodesOBDII Code List P0152
Repair Difficulty Level: 2/3
P0152 Possible Causes
Faulty Front Heated Oxygen Sensor Bank 2
Intake air leaks may be faulty
Exhaust gas leaks
Front Heated Oxygen Sensor Bank 2 harness is open or shorted
Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection
Inappropriate fuel pressure
Faulty fuel injectors
First diagnose P0152 code
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
P0152 Tech Notes
Replacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem
Cost of diagnosing the P0152 code
Labor: 1.0
The cost of diagnosing the P0152 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the P0152 code detected?
An excessively high voltage from the sensor is sent to Engine Control Module (ECM).
P0152 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
High Fuel Consumption
Excessive Smoke from Exhaust
P0152 Meaning
The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM
). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.
P0152 More Information
Need more information on how to fix the P0152 code? Get Access to Factory Service Manuals
P0152 Information for specific makes
P0152 AUDIHO2S21 Sensor Circuit High Voltage
P0152 BMWO2 Sensor Circuit High Voltage Bank 2 Sensor 1
P0152 BUICKHO2S Circuit High Voltage Bank 2 Sensor 1
P0152 CADILLACHO2S Circuit High Voltage Bank 2 Sensor 1
P0152 CHEVROLETHO2S Circuit High Voltage Bank 2 Sensor 1
P0152 CHRYSLERO2 sensor 2/1 Circuit High
P0152 DODGEO2 sensor 2/1 Circuit High
P0152 FORDO2 Sensor Circuit High Voltage Bank 2 Sensor 1
P0152 GMCHO2S Circuit High Voltage Bank 2 Sensor 1
P0152 HYUNDAIHO2S Circuit High Voltage Bank 2 Sensor 1
P0152 INFINITI-2Air Fuel Ratio Circuit High Bank 2 Sensor 1
P0152 INFINITIO2 Sensor Circuit High Bank 2 Sensor 1
P0152 JAGUARO2 Sensor Circuit High Voltage Bank 2 Sensor 1
P0152 JEEPO2 sensor 2/1 Circuit High
P0152 KIAHO2S21 Circuit High Voltage
P0152 LEXUSHO2S21 Circuit High Voltage
P0152 MAZDAHO2S LF Circuit High Input
P0152 MERCEDES-BENZO2 Sensor Circuit High Voltage Bank 2 Sensor 1
P0152 MERCURYO2 Sensor Circuit High Voltage Bank 2 Sensor 1
P0152 MINIO2 Sensor Circuit High Voltage Bank 2 Sensor 1
P0152 MITSUBISHICylinder 2-3 Heated Oxygen Front Sensor Circuit High Voltage
P0152 NISSAN-2Air Fuel Ratio Circuit High Bank 2 Sensor 1
P0152 NISSANO2 Sensor Circuit High Bank 2 Sensor 1
P0152 PONTIACHO2S Circuit High Voltage Bank 2 Sensor 1
P0152 SATURNHO2S Circuit High Voltage Bank 2 Sensor 1
P0152 SCIONHO2S21 Circuit High Voltage
P0152 SUBARUHO2S21 Circuit High Voltage
P0152 TOYOTAHO2S21 Circuit High Voltage
P0152 VOLKSWAGENHO2S21 Sensor Circuit High Voltage