Hi All,
I have a 1997 4JG2 EFI Bighorn. The EFI Injector Pump was on its way out and i swapped it for a refurbished mechanical pump (drives 1000x smoother now).
I am having difficulty getting the tachometer to work with the new pump. I purchased a Dakota Digital DSL-1 to read the sensor on the mechanical pump, I've got the unit going and reading speed from the new pump, however I have tried various output configurations with the grey 3-pin plug in the loom for the original sensor and can't get anything to happen on the dash.
Has anyone done something similar with an EFI bighorn and gotten the tach to work?
Cheers.