Hobnob
Member
Recently bought a used 2003 GTX 4 tec supercharged, supercharger rebuilt by dealership where I bought it. Ran perfectly for 2 days but now when I hit anything over 50mph it alarms, goes into idle speed for 10 seconds or so and clears. Don’t think it’s the sensor since it only happens above 50mph but will check sensor soon. I’ve read about 3 small holes on the j pipe could be clogged and need cleaning. Where are the 3 holes? Any help would be appreciated.
