I'am building oxygen sensor simulator per http://www.mkiv.com/techarticles/oxy...nsor_simulator, the parts minus the soldering iron and solder run $22.02 at Radio Shack. This device send a signal to the ecu simulating the second oxygen sensor after the catalytic converter which maybe useful if your running no cat, gutted cat or high flow cat on an OBD2 car. This will keep you from throwing a check engine light and putting your ecu in limp mode. I've decide to use this device since I will be switching out my precat header for an EX after-cat header on my 96 Civic CX leaving me without a cat. I've opened a angelfire webstie account to track my progress and experience with this device at http://www.angelfire.com/electronic2/mikefxu/. Currretly I have a picture of all required parts. I will start assembling tomorrow and hope to put to use by the end of the week.

I was wonder if the electronically challenged would pay for a device like this, maybe $5 - $10 over cost plus exact shipping. For the electonically able you can just the information I've gathered and do it for yourself.