Bike gets up to temp and a seems to start starving for fuel while cruising (cylinder cutting out, intermittent engine light, feels like parade mode). Runs fine while accelerating. P0651 code.
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09-17-2018, 09:30 AM
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Bike gets up to temp and a seems to start starving for fuel while cruising (cylinder cutting out, intermittent engine light, feels like parade mode). Runs fine while accelerating. P0651 code.
2015 U/L with FP3, Big Sucker, SVT Boneshaker slip ons... Bike gets up to temp and a seems to start starving for fuel while cruising (cylinder cutting out, intermittent engine light, feels like parade mode). Runs fine while accelerating. P0651 code.
Have you seen this issue before?
Where was the problem?
Did the P0651 code relate to the poor running at temp?
How did you fix it?
Thanks in advance for your feedback.
Have you seen this issue before?
Where was the problem?
Did the P0651 code relate to the poor running at temp?
How did you fix it?
Thanks in advance for your feedback.
Last edited by docwells2000; 09-17-2018 at 09:48 AM. Reason: Didn't state a question in the original post
#2
09-17-2018, 09:46 AM
Grand HDF Member
#4
09-17-2018, 01:59 PM
Road Warrior
#5
09-17-2018, 06:59 PM
P0651 5 Volt Reference 2 Out of Range, would appear to be a sensor that uses a 5 volt reference is having intermittent failures, MAP (Manifold Absolute Pressure), TPS (Throttle Position Sensor), CKP (Crank Position Sensor), TGS (Twist Grip Sensor), CTS (Coolant Temperature Sensor) and there are several more.
Diagnostic Aids (You will need a Harley Electrical Manual that gives you pin locations with numbers and wire colors for the ECM and other component connectors) It may be possible to locate the fault by disconnecting one component at a time from the 5-volt reference circuit while viewing the 5-Volt Reference circuit parameter with a Digital Multi Meter. Ignition ON, measure for 4.8-5.2 volts between one of the 5-volt reference circuits and ground.
* If the voltage is less than the specified value, test for a short to ground on all the 5-volt reference circuits. If all circuits test normal, replace the control module.
* If the voltage is greater than the specified value, test for a short to voltage on all the 5-volt reference circuits, or the signal circuit, for each component associated with the appropriate 5-volt reference circuit. If all circuits test normal, replace the control module.
3. Connect each component associated with the 5-volt reference circuit, one at a time, while monitoring the voltage. The voltage should not change more than 1 volt.
* If the voltage display changes more than the specified value when a component is connected, replace the component.
Diagnostic Aids (You will need a Harley Electrical Manual that gives you pin locations with numbers and wire colors for the ECM and other component connectors) It may be possible to locate the fault by disconnecting one component at a time from the 5-volt reference circuit while viewing the 5-Volt Reference circuit parameter with a Digital Multi Meter. Ignition ON, measure for 4.8-5.2 volts between one of the 5-volt reference circuits and ground.
* If the voltage is less than the specified value, test for a short to ground on all the 5-volt reference circuits. If all circuits test normal, replace the control module.
* If the voltage is greater than the specified value, test for a short to voltage on all the 5-volt reference circuits, or the signal circuit, for each component associated with the appropriate 5-volt reference circuit. If all circuits test normal, replace the control module.
3. Connect each component associated with the 5-volt reference circuit, one at a time, while monitoring the voltage. The voltage should not change more than 1 volt.
* If the voltage display changes more than the specified value when a component is connected, replace the component.
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