Originally Posted by rpiereck My NG900 must be jealous of the C900... This morning my '96's CEL came on on the way home. I pulled over on the side of the road and the idle was a high, aorund 1500 rpm, but soon dropped to right at 1000. The engine didn't feel any different and I was less than a mile from hme so I drove it there. I connected my OBD bluetooth adapter and read the codes using my Android app, I got: P0115 - Engine Coolant Temperature Circuit P0325 - Knock Sensor 1 I have ...