- Tue Apr 25, 2023 10:08 am
#62640
One step forward two steps back.
It seems that the controller is most likely not the issue and a damaged o2 sensor is more likely the issue. After receiving a replacement controller (which I will now pay for) I removed the old o2 sensor and discovered a drop of water sitting on top of it. I now have three things to do moving forward:
Find out where the water came from
Find a new sensor replacement
Understand what I can do while I wait for a replacement
The drop of water on the o2 sensor could have either come from a leaking water gallery in the exhaust manifold or from condensation build up in the lower areas of the exhaust. I will remove the manifold to check for leaks. I will also see how much water accumulates in the fiberglass section of the exhaust where both exhaust manifolds come together before exiting at the back of the boat. It was interesting that the drop of water stayed on the sensor for a week and remained there while I unscrewed it. After running the boat on the hose there was no water on the sensor when I removed it.
Going forward, if there is a leak in the cast iron exhausts I will have to find a way to repair it? If the issue is condensation then it is not solvable and I will have to remove the sensor once I get a decent tune.
I tried to find a replacement sensor in the wrecking yard this morning. No one has seen the plug that I have and most of the o2 sensors are 4 wire. The wrecker wanted 50 USD for a cruddy 5 wire o2 sensor I managed to find. That seems to leave online as my only option. Amazon has a lot of WBO2s with the correct plug but the genuine Bosch sensors are not available. Will the replica Bosch sensors work or do I have to get the real deal?
After working on this project for about 5 months now I’m finding myself under some time pressure. My family and I are leaving the country in 7 weeks so the project has to be finished soon. I was hoping to have it completed with enough time for a few weekends of wakeboarding but it looks like it will go up for sale as soon as it’s done. While I wait 1-2 weeks for the sensors to come in, is there anything more I can do to get the tune close and potentially do a water test to check for other random issues that are sure to pop up…?
It seems that the controller is most likely not the issue and a damaged o2 sensor is more likely the issue. After receiving a replacement controller (which I will now pay for) I removed the old o2 sensor and discovered a drop of water sitting on top of it. I now have three things to do moving forward:
Find out where the water came from
Find a new sensor replacement
Understand what I can do while I wait for a replacement
The drop of water on the o2 sensor could have either come from a leaking water gallery in the exhaust manifold or from condensation build up in the lower areas of the exhaust. I will remove the manifold to check for leaks. I will also see how much water accumulates in the fiberglass section of the exhaust where both exhaust manifolds come together before exiting at the back of the boat. It was interesting that the drop of water stayed on the sensor for a week and remained there while I unscrewed it. After running the boat on the hose there was no water on the sensor when I removed it.
Going forward, if there is a leak in the cast iron exhausts I will have to find a way to repair it? If the issue is condensation then it is not solvable and I will have to remove the sensor once I get a decent tune.
I tried to find a replacement sensor in the wrecking yard this morning. No one has seen the plug that I have and most of the o2 sensors are 4 wire. The wrecker wanted 50 USD for a cruddy 5 wire o2 sensor I managed to find. That seems to leave online as my only option. Amazon has a lot of WBO2s with the correct plug but the genuine Bosch sensors are not available. Will the replica Bosch sensors work or do I have to get the real deal?
After working on this project for about 5 months now I’m finding myself under some time pressure. My family and I are leaving the country in 7 weeks so the project has to be finished soon. I was hoping to have it completed with enough time for a few weekends of wakeboarding but it looks like it will go up for sale as soon as it’s done. While I wait 1-2 weeks for the sensors to come in, is there anything more I can do to get the tune close and potentially do a water test to check for other random issues that are sure to pop up…?