Identifying and Dealing with EMI, searching and searching Options

[McMark]

I would like to spend some serious time doing a qualitative analysis of the EMI that is probably going on in my engine bay. I've been searching Google for some write ups that might help me get started, but everything seems to be quick marketing blurbs for every electronics company on the planet. Does anyone have some links or books or anything that might help me?

Here is how I would like to approach the problem:
1. Evaluate my current situation.
2. Identify the sources.
3. Implement effective corrective measures.
4. Judge the effectiveness of my efforts.

This is probably over the top, but being the son of an engineer makes me think this way. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

So give me your best links and books regarding identifying and dealing with EMI, please.

[lapuwali]

Don't try to reduce the EMI, shield against it. The ignition is going to generate a lot of EMI, no matter what you try.

I'm assuming this is your one-off Kit Carlson setup? If so, make sure the electronics are sealed in a metal box, and that the box is grounded. Twist any sensor wires that come in pairs together, as this reduces their sensitivity to noise. If this isn't enough, or you have a single sensor wire picking up noise, cover it with conducting braid with one end grounded.

Run separate ground wires for sensors showing too much noise (TPS tends to be susceptible to this), rather than running the signal ground through the car body. Again, do the twisted pair thing with these.