Need a little help.
Bike in question is a 2008 Breva 1200 sport
The owner of this bike is an acquaintance of mine and the bike was a running bike prior to repairs done. The bike ran great but 3 miles down the road at this point it died and hasnt started again. The bike will crank but does not start. My first instinct was to go over what was last touched but not finding anything that could have caused the issue.
Error codes P0351 Left coil short circuit to battery positive, P0352 Right coil short circuit to battery positive
Repairs done:
First thing that was done was replacing a clutch lever after she dropped it in the driveway (pretty straight forward repair).
Second was to replace her oil pressure sensor. She was getting a random error light that came and went but wasn’t throwing a code. After some research she thought it was worth replacing to see if the sensor was the culprit.
To replace the sensor, I had to change out the connector to match the new style sensor. I also removed the revolution sensor to make access to the pressure sensor easier.
Everything seems good here. The revolution senor is recognized and throws a code if disconnected and diagnostic software sees rpms as the engine is cranking.
Battery was also replaced. Battery was weak and could only start the bike once or twice without recharging. Bike was started multiple times with no issues with new battery.
Diagnosing Codes:
Ive tested both positive sides on the plugs going to each coil. I took a light tester to the positive wire of the coil plug and went to battery ground. At start up the light filps on then off when you hear the relay click, and lights up when cranking the motor.
However on the negative side. Taking the light tester from positive battery to negative wire of coil plug I get no light. The ecu doesn’t seem to be giving me the ground I need.
At this point Im thinking a bad ecu or ground wire from ecu.
I haven’t gotten a chance to look to deeply at the ecu. It appears the ecu ground is blue green wire and is bolted to the under side of the ecu? From this bolt to battery ground I have continuity.
Just wanting to get others point of view on this. Thanks for the help.
Bike in question is a 2008 Breva 1200 sport
The owner of this bike is an acquaintance of mine and the bike was a running bike prior to repairs done. The bike ran great but 3 miles down the road at this point it died and hasnt started again. The bike will crank but does not start. My first instinct was to go over what was last touched but not finding anything that could have caused the issue.
Error codes P0351 Left coil short circuit to battery positive, P0352 Right coil short circuit to battery positive
Repairs done:
First thing that was done was replacing a clutch lever after she dropped it in the driveway (pretty straight forward repair).
Second was to replace her oil pressure sensor. She was getting a random error light that came and went but wasn’t throwing a code. After some research she thought it was worth replacing to see if the sensor was the culprit.
To replace the sensor, I had to change out the connector to match the new style sensor. I also removed the revolution sensor to make access to the pressure sensor easier.
Everything seems good here. The revolution senor is recognized and throws a code if disconnected and diagnostic software sees rpms as the engine is cranking.
Battery was also replaced. Battery was weak and could only start the bike once or twice without recharging. Bike was started multiple times with no issues with new battery.
Diagnosing Codes:
Ive tested both positive sides on the plugs going to each coil. I took a light tester to the positive wire of the coil plug and went to battery ground. At start up the light filps on then off when you hear the relay click, and lights up when cranking the motor.
However on the negative side. Taking the light tester from positive battery to negative wire of coil plug I get no light. The ecu doesn’t seem to be giving me the ground I need.
At this point Im thinking a bad ecu or ground wire from ecu.
I haven’t gotten a chance to look to deeply at the ecu. It appears the ecu ground is blue green wire and is bolted to the under side of the ecu? From this bolt to battery ground I have continuity.
Just wanting to get others point of view on this. Thanks for the help.