Injection system Options

[dmenche914]

Some questions on a 2 liter FI system:

I got a GC motor (1975), and I have some FI questions:

1. I'd like to use a 1973 or 73 engine wire harness, only difference I see is the early harness is set up fot a single wire cold start switch, the 1975 engine has a two wire switch.
I plan to use a single wire switch on my engine, so I can use the earlier harness.

Any thoughts on this?

2. Also, I have two types of green 2 liter injectors. the ones ending in part number 019 are for a 73-74 car and those ending in 038 are for a 75 to 76 car. (part number data from Paul Anders web site)
What is the difference if any in performance between these two injector types?

3. I also have two brains to choose from, a 75-76 brain (ending in 052) and a 1974 brain (ending in 14x) both are for 2 liter cars.

Would I be better off performance wise with one or the other, and is it needed to match the brain to the harness i an using (per above cold start switch issue?)

I have the 043 number MPS and understand that it is for 74 thru 76 2 liter engines.

So what might be best? use the newer or older ECU (brain), and use the newer or older injectors?

I pretty much want to go with the 74 harness (single wire cold start switch) as my 75 harness is really deteriorated.

Any suggestions or advice?


By the way if you haven't seen Paul Anders write up on 914 D-jet, take a look, it is very very informative.


thanks dave