The dealer just called to tell me my ECU is not operating properly. Improper voltage to the vertical cylinder, code #11.2. They want to sell me a $1600 part. I have a 04 St4s w/ 5500 miles. I have been trying to locate an ECU or an aftermarket fix that I can afford. Is there a parts store to check out? Can these be fixed? Can I fix this? Are there any cross over applications for this part? any help is appreciated.