CheckEngine
New Member
- Joined
- September 29, 2015
- Messages
- 1
- Reaction score
- 0
- City, State
- Upstate SC
- Year, Model & Trim Level
- 2001 B2500
3 yrs ago I changed out the sender and added a gage because the dummy needle on the dash was dropping out occasionally. Aftermarket gage always shows 30-65 psi but the dash gage still dropped out at low idle. This morning the dummy needle pegged low and the red "check gage" light is on continuous so I want to fix it. Engine is still running fine. Anyone know how that circuit is wired? What voltages to expect? Diagram? Does it go through the computer? Thanks.
