What have I done? Two N00bs Try to Resurrect a 7

[YourEconProf]

Some long overdue updates...work continues! We have the engine harness nearly complete; it's the wiring set from Megasquirt for an MS3Pro Mini that has been adapted to the Caterham. The trigger wheel has been a barrier, but hopefully the custom-made wheel will arrive tomorrow and get welded onto a pulley this week. That will permit crank timing with the the DIYAUTOTUNE Hall effect sensor. Likewise, the blacktop Zetec has a one-tooth intake cam and is already drilled and ready for a cam sensor. This will allow setting it up as a fully sequential fuel system.

 

Also, as the motor is 12:1, I'm installing (as I do on all my cars) an ethanol sensor to tune for flex fuel. 

[MV8]

Does it know the percentage of ethanol or is it just a switch to indicate ethanol is circulating in the fuel lines?

[YourEconProf]

6 minutes ago, MV8 said:

Does it know the percentage of ethanol or is it just a switch to indicate ethanol is circulating in the fuel lines?

It knows the percentage, and then in the CPU, you set up tables for pure gasoline (really E10) and E85, and then the spark & fuel are calculated by interpolating between the two tables. I've converted a few Miatas, and its a really nice system, though it means double the work of tuning, which, with ITBs, I'm not excited about!

[YourEconProf]

Also, does anyone know what this switch (the one that looks like it has a pedal on it?) does? 

I'm now turning to the chassis harness, and this one is confounding me.

 

[Vovchandr]

12 minutes ago, YourEconProf said:

Also, does anyone know what this switch (the one that looks like it has a pedal on it?) does? 

I'm now turning to the chassis harness, and this one is confounding me.

 

 

That location on the dash is typically for a foglight but the icon is not something I've ever seen before.

 

Looking like a brake pedal I can only assume it's a brake fluid switch test which is something regular cars have but in different place with different icon. 

[YourEconProf]

28 minutes ago, Vovchandr said:

 

Looking like a brake pedal I can only assume it's a brake fluid switch test which is something regular cars have but in different place with different icon. 

What would a brake fluid switch test do? This car does have brake lights actuated by fluid pressure.

[sltous]

Some details from a classic mini forum: https://www.theminiforum.co.uk/forums/topic/117159-brake-test-switch/

[YourEconProf]

Also, the car has 3 lights between the tach and speedo: green, red, and blue. I'm assuming that blue is brights, what are green and red?

 

[toldfield]

On my car, '82 S-3, 

 

Green is the turn signal indicator

Red is generator 

Blue is high beams

[NSXguy]

i shared an assembly (disassembly) manual for an early 7 in the file archives section. It'll be helpful with your chassis/ wiring efforts. 

 

Edit:

here is the link

 

Edited Thursday at 01:39 PM by NSXguy