Though we don't provide the sensors ourselves, here at Dynon we're hearing a consistent theme from customers that the newer style Honeywell oil pressure sensors that are on the ASTM'd Rotax 912s used on the RV-12 aren't very reliable (and expensive to replace).
We had a chance to ask Rotax about this issue while over at the AOPA Expo last week, and they report that they've only ever received a handful of them back under warranty, and hence Rotax doesn't believe there is a problem here. Statistically, there may not be, but it's important for Rotax to know about any problems with these sensors so they can determine fleet reliability for themselves. There is evidently a test procedure for the sensor described in the engine manual which can help identify and actual failed sensor, vs one that is perhaps not connected properly.
Rotax IS very interested in getting back actual faulty sensors, and we've been told that they can be replaced under warranty if they've actually failed in warrantable circumstances. It looks like Rotax's mechanism for support issues is through one of their authorized service centers.
We had a chance to ask Rotax about this issue while over at the AOPA Expo last week, and they report that they've only ever received a handful of them back under warranty, and hence Rotax doesn't believe there is a problem here. Statistically, there may not be, but it's important for Rotax to know about any problems with these sensors so they can determine fleet reliability for themselves. There is evidently a test procedure for the sensor described in the engine manual which can help identify and actual failed sensor, vs one that is perhaps not connected properly.
Rotax IS very interested in getting back actual faulty sensors, and we've been told that they can be replaced under warranty if they've actually failed in warrantable circumstances. It looks like Rotax's mechanism for support issues is through one of their authorized service centers.