What is the function of the ECM?

[polar]

Well I am buying a carbed chevy 382 stroker and trying to get everything taken care of before it arrives, and I have a couple questions that need an answer.

1. What does the ECM control?

2. Are the gauges ran off of the ECM or will they still work when I remove the ECM from the car when I install my TCI standalone trans computer?

3. My dad wants to know what will be affected by removing the ECM?

Thanks

 

[badazzbulldog]

what year truck do you have?

 

[polar]

1998 chevy C1500. I just realized I dont have any info of my truck in my signature