Do you have the plug in analyzer or is it the onboard one ? Codes? Corrosion on governor plug? Your analyzer will show throttle angle and should be 5.0 to 5.5. If the throttle sensor is out of range, again it will code out. Check fuses for ECU's. Do a voltage test thru fuse or in doubt replace the 3. Your dvom isn't always accurate to pick up a shorted fuse. Had one the other day showed.04 ohms. But 1.7 volts only to ECU.