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By relocating your IAT
(Intake Air Sensor), you can fool your car's computer into thinking that
there is more cool air entering the engine than there actually is. This
causes the engine to increase the amount of fuel that enters the
cylinders, as well as altering the timing (advancing it 3 degrees), thus
creating more power. This mod is especially beneficial when used with an
aftermarket air intake system. Please note that there is a trade-off with
this mod: your car will loose fuel economy.
- Locate your IAT. It is
a small sensor found in the S-Tube which leaves the front of the
engine and into the airbox. Carefully remove this sensor by pulling it
while wiggling slightly.
- Cover the hole you
left in the S-Tube with some sort of tape (electrical tape would be a
good choice, since it's black, as is the tube). Ensure that you
completely block the hole, otherwise air will enter thru that hole
unfiltered (which could cause engine damage later on).
- Cut the wires going to the IAT sensor, and
patch in a longer piece of wire. Use some shrink tubing to
ensure a good, dry connection.
- Relocate the IAT
sensor to a suitable location in a grill near the front of your car.
Be sure that you route the wires away from any possible sources of
heat or where it could rub against another part, as this could cause
the wire coating to wear off, thus causing a short circuit. Cavalier
Z24 owners may wish to place the sensor behind the inserts near the
fog lights, whereas Sunfire owners can place it anywhere in the hex
grills. Remember, the idea here is to get as much cool air flowing
over the sensor as possible. Don't place it behind your license plate
or someplace where the air won't directly contact the sensor, as this
defeats the purpose of the mod!
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