270 ohm resistor, whats it for? Options

[tomh]

I have a 2.0 GA in my 72 with the proper ECU and harness.Do I need the 270 ohm resistor on my head temp wire?It runs a little chuncky on low end but has lots of rev and power on top.Will the resistor help with smoothing out the whole range of power.
Why do some systems have it and others do not?

[avidfanjpl]

My car, a really early 73 2.0L (GA000336) never had the resistor. I put one in, but removed it. I am still experimenting with the tuning, but when I had it in, it ran really rich.

My mechanic removed it then timed and tuned the engine. It runs pretty damn well and I am getting 26 to the gallon.

However, after the CHTS 017, they went to an 012 CHTS and had the resistor in place, but not necessarily with the E version of the ECU, which was only for part of 1973 and possibly 1974. I have 2 matching E version ECU's.

It is nothing short of witchcraft and wizardry to figure it all out, but my car runs.

Later this summer, when I finish the exhaust system and some restoration, I will reinstall a recently acquired working 017 CHTS and have the 270 ohm resistor standing by. Mine is not working within ohm specs on the Anders site.

Maybe even this weekend I will get around to it. I have more parts for my FI than a lot of people, including 2 almost complete FI systems correct for the early 73 motor.

But not all the parts. Just a lot of them. I am definitely one of a couple of hoarders here. I want this car to run when I am 103 and have to be lowered into it from above.

John