Coolant Temperature Sensor Installed and Most Wiring Done for PC800 Fuel Injection Conversion

20140426_135117

I installed the coolant temperature sensor in line with one of the coolant lines coming off the engine heads.  It will restrict coolant flow a little but hopefully not enough to hurt the PC800 engine.  I had to improvise with some coolant hose that I had laying around the shop to fit.  I will need to check for leaks once I have the fuel injection system up and running, and the engine hot and coolant system operating at pressure.

20140428_084117Wiring is coming along well.  I am done with wiring in the coolant temperature sensor, the throttle position sensor, the manifold air pressure sensor in the throttle body, the air pressure sensor that will live somewhere else on the bike to monitor atmospheric pressure, the intake air temperature sensor, and the fuel injectors.  I also connected the relay for the high pressure fuel pump.  Next up is to connect the spark pulse sensor wiring and the spark generator wiring.  I’ve decided that I’m going “all in” and will have the MicroSquirt control the spark system, too.

I still need to wire in the indicator LEDs and the tilt sensor.  Also I need to think about how the run/stop (kill) switch on the handlebars will get wired into the setup.  Maybe I will use it to cut the relay power to the fuel pump.

It looks like next weekend I should be able to start tuning the bike.  Exciting times ahead!

 

2 Replies to “Coolant Temperature Sensor Installed and Most Wiring Done for PC800 Fuel Injection Conversion”

  1. It’s good to see some progress. The work you are doing is waaaaay above my head and intriguing. I am happy to see the project progress. There is so much new wiring. Are you sure you didn’t just stick some extra pieces there to keep us wondering?

    Peace.

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