![Check Engine Light/Reduced Engine Power?? (ANyone please help) - Cadillac Forum - Enthusiast forums for Cadillac Owners Check Engine Light/Reduced Engine Power?? (ANyone please help) - Cadillac Forum - Enthusiast forums for Cadillac Owners](https://cimg9.ibsrv.net/gimg/www.cadillacforum.com-vbulletin/2000x1504_1/20181110_101438_9e15d4718a5ba0a310f8d1a933b03e251c435e6a.jpg)
Check Engine Light/Reduced Engine Power?? (ANyone please help) - Cadillac Forum - Enthusiast forums for Cadillac Owners
![2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service 2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service](https://www.cadillacvnet.com/knowledge-base/assets/18-NA-291-1.png)
2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service
![2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service 2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service](https://www.cadillacvnet.com/knowledge-base/assets/18-NA-291-14.png)
2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service
![2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service 2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service](https://www.cadillacvnet.com/knowledge-base/assets/18-NA-291-5.png)
2016 - 2019 Cadillac CTS-V: Service Bulletin: #18-NA-291: Reduced Performance, Reduced Power, Engine Misfire After Charge Air Cooler Service
![I have the reduced engine power message along with can connect to computer and electronic throttle message. Codes C0240 I have the reduced engine power message along with can connect to computer and electronic throttle message. Codes C0240](https://ww2.justanswer.com/uploads/GM/gmtech121/2014-08-19_123756_tac.gif)