During the summer of 2012, the engine in my 1991 Porsche 911 was rebuilt. At the same time, the Climate ECU failed and was sent to Specialized ECU to be rebuilt for $350 with a 5 year warranty.\r\nThe Climate ECU ran fine for about 18 months and then failed in the spring of 2014 and was returned to Specialized ECU for warranty repair service. The ECU removal instructions contain no information about the Climate ECU also controlling the engine cooling as well. Their web sites states “In most cases the usual turnaround time is 3-5 days.”\r\n\r\nOne year later the repairs to my Climate ECU have not been completed. My Porsche was driven without adequate engine cooling provided by the Climate ECU computer. I found this out when the engine failed less than two years after a complete rebuild. No compression in one cylinder, damaged heads and a $9,000 repair bill.\r\n\r\nSpecialized ECU did not repair my unit in “3-5 days” or even 3-5 months – it’s been a year. After multiple emails and assurances that the repairs would be completed in days, the best Specialized ECU can offer was a refund of $350 and the return the failed ECU unit.\r\n\r\nSo Specialized ECU has left me with a $9,000 engine repair bill and a Climate ECU which will not cool the engine so the car is undriveable. Additionally, my best option is to purchase a new Climate ECU for $2,000.\r\n\r\nI would like to share my experience with Specialized ECU to help others in their decision process.