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warpspeed
01-29-2004, 10:37 PM
Just a couple of quick questions about a/f gauge. I have put one before on my civic and it was easy, so I want to make sure.

first question....since our Evo runs rich straight from the factory, will my autometer gauge read rich all the time?
second question....can I tap the input through the 02 bung right after the cat.?

thanks

EvolvedDSM
01-30-2004, 05:51 AM
It will read rich all the time when full throttle. When cruising and at idle, it will swing back and forth as you're probably used to in the Civic.

You can easily tap at the ECU for a signal. Much easier than feeding a wire from the sensor itself.

warpspeed
01-30-2004, 09:36 AM
Cool. I'll look for the wiring diagram so I know which wire to tap into.

EvolvedDSM
01-30-2004, 11:56 AM
http://www.roadraceengineering.com/evo/tech/EVO-ecuwiring.htm
#76

warpspeed
01-30-2004, 12:11 PM
Thanks a bunch. It saves me time looking it up on the cd manual.