Dear, I belong to a team of important competition. And 7 years equipping us with motec come ECU, data loggers and PDM.
We never had a problem with anything, until recently failed me 2 PDM. One with the car running on track energy is suddenly short and PDM car stopped working. The open burning smell is appreciated.
This weekend, another PDM failure. The car leaves the track, upon return, short contact on the grid. Shortly after starting the race contact and the pilot gives the PDM never worked. Back to open it, a burning smell.
It is very worrying, I have 9 track cars equipped with PDM 15 and never had problems. All we've been using since 2010 and never failed.
The two that failed are the last we bought a year ago.
SN: 14103-12255 and 14103-12256.
I can attach the data acquired if they prefer.
New optima yellow top batteries, clean and tight terminals. Excellent mass around the vehicle. Inside the cabin room temperature around 36 ° C. PDM mounted properly isolated from vibrations in the cockpit.
Any suggestions?