Here is an alert to all of you who are audiophiles
who incorporate aftermarket power amplifiers in your sound system. For the serious enthusiast you know the importance of a
"clean" install. No visible wiring etc. In some cases it may be the choice of the installer to run the
amp's power wire THROUGH the ECU's protective box (right past the ECU either under it or otherwise) and
follow the harness through the fire-wall. This is very obvious option because there is no need to drill a new hole
in the fire wall and the wiring is completely hidden. However, depending on the wattage you are pulling,
The EMF(i) Within the ECU is the knock sensor control. In some cases, where
there is a large enough draw from the power amplifier, a small amount of EMF may bleed through the Additonal information from Michael Michon (Mar-2001):
A way to avoid rerouting your power cable away from the ECU is to "artificially" shield your cable. You can do so tightly applying aluminum foil around the cable and taping together the segments of foil. At both ends, make sure your this shielding is connected to ground by connecting a small wire to a grounded nut. I routed the newly shielded cable underneath the clips that hold the ECU in place, which were also grounded, and this solved all of my interference problems with the APR chip!
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