Longer weekend updates

 This weekend is a bit longer than normal, mainly because it's another change of contract. My last job finished on Thursday, and my new job starts Monday, so a bit longer on the car.

Or more specifically, more time on the wiring. It's like a never ending job. Today I went back over the rear of the car and sorted out all the ground points. This included the fuel tank earth, so for the back of the car it's all set. The only thing I need to do now is to use cable ties to fix it all in place.

Up front I've done one solid ground point near the fuse box, and got several wires terminated and fixed. On the way I picked up a few more wires, specifically the gauge wiring. I've just got the temp sensor now, just one last wire. But I also found a few more wires from the engine side that need wiring.

Now this is where it got complicated again, so I took a break. It was the crank angle sensor this time. The wires are cut short and I wanted to check where they were meant to go.

The CAS has a white red line that doesn't connect to the current white red. I need to use another white red to connect all these;

• CAS
• Main Relay
• Circuit opening relay
• ECU pin 1#B
• Fuel injectors

There's also;

• Black light green which is ground (done).
• White to ECU 2#E
• Yellow Blue to ECU 2#G

The ECU lines are easy enough, then I just need a length of white red to make up the line. 

I also found a few wires going from the ECU to the dash, but it turns out they were related to air conditioning so they came out. I also tidied up the OBD lines, I still don't think I'm keeping the port but at the moment the wires are still there. 

I do need to sort the switches though, I think they're the last three wires remaining from the dash. And the battery is charged and ready to be connected.

(Later that weekend)

Wiring up the white red wasn't too bad in the end, and actually it made the engine wiring look a lot simpler. Now everything is almost in it's correct place I can see a whole load of earths needed. So the plan will be the same as the other side, a nice fat bolt through the bodywork with all the earths hanging off it.

However, I did also find a pretty sorry-looking engine earth strap, so that's going to need replacing. And of course it's a pretty beefy lead so I need to get some decent size terminals to make up a new lead. Fortunately the MX5 battery is in the boot so I have a very long length of thick cable to use as earth and positive leads. Then I need to make up the earth leads for all the sensors, ECU etc.