Jrasband
Platinum Member
- Joined
- Dec 31, 2021
- Messages
- 540
- Location
- Southwest VA
- Tractor
- Kubota M7060, Case IH 585 4wd, BCS 853, Kymron ZX22
You can change it to mechanical linkage.The WM33/37 has a mechanical injection pump, but instead of mechanical linkage to the throttle control lever, they use a variable resistor/voltage to the ECU and the ECU controls a linear solenoid with position feedback to meter the fuel and control RPM. A simple circuit should allow bypassing this function of the ECU. Attached is a concept circuit that simulates, but has not been built/tested: