Closer still…

No recent updates, but I have been working on things.

The wiring has been a real PITA.  Not difficult, just very tedious.  At this point, I have the engine wired, though, and gave it a minor electrical test.  The battery is reconnected, and power seems to flow to the electrical systems:

That is MegaSquirt2/Extra code getting loaded.  Exciting times, Goose.

One weird problem that I need to troubleshoot:  The ASD and fuel pump relays both need to be fired up from the MS fuel pump relay output.  In order to do that, I’ve added a third relay so that the MS will power the relay which will, in turn, power both the ASD and fuel.  The diagram I found indicated the need for a diode to prevent the fuel pump and ASD relays from feeding in to each other, but it looked like the diagram showed the diodes installed backwards, so I installed them the way I thought they should be.  Now, as soon as I plug in the MS controller – even with the ignition off – the fuel pump turns on.  So, MS is powered down, but we’re pumping fuel.  Apparently I got too smart for myself.

MS is responding to throttle input and sees the O2 sensor and the CLT sensor, but I haven’t calibrated any of the other sensors or anything yet.  For now, I’m going to leave the IAC disconnected like it was before and I’ll worry about that later.  Likewise on the tach output.  I completely don’t understand the schematics that I’ve found from the Megamanual, so I’ll get back to that later.

The list:

  1. PS belt
  2. Run wires across front and right side of engine
  3. Connect water hoses to hardline
  4. Connect heater core water hoses
  5. Install radiator
  6. Install cooling fans
  7. Re-install MegaSquirt
  8. Install PCV system
  9. Add hose barb to air cleaner pipe for valve cover breather
  10. Install intake pipes and hoses (I think the hot side pipe that I want to try to use is still at the storage garage)
  11. Install PT air temp sensor
  12. Torque down O2 sensor
  13. Install oil filter sandwich adapter
  14. Install oil filter
  15. Fill engine with oil and turn by hand a few times
  16. Install axles
  17. Fill transaxle
  18. Try to start engine
  19. Re-install front end