MrShorty
Explorer Addict
- Joined
- December 27, 2001
- Messages
- 5,078
- Reaction score
- 20
- City, State
- Spanish Fork, UT
- Year, Model & Trim Level
- 92 XLT and '87 Bronco II
If the 5V reference voltage isn't reaching the DPFE, then the next step would be to work your way towards the PCM along that circuit until you find where the break is in the Vref circuit.