D
ATA
M
AXX
O
XYGEN
S
ENSOR
Overview:
An alternative tuning device to the EGT is the Oxygen sensor. The
D
ATA
M
AXX
unit can not directly
interface to a standard automotive oxygen sensor and needs a separate oxygen sensor controller.
Part Numbers:
#8041
Wego III Wide Band O2 Sensor
#8042
Dual Wego III Wide Band O2 Sensor
Installation:
1.
The oxygen sensor should be located on the header pipe about 6-8 inches from the header
flange. Ideally the sensor tip should face down to avoid accumulation of condensation.
2.
A 18 x 1.5 mm weld nuts must be welded onto the exhaust pipe. After welding, run an 18 x
1.5 mm tap through the threads. Failure to clean the threads may result in sensor damage.
Always use an anti-sieze lubricant on the sensor threads
3.
Install the Wego IIID unit. The unit is fully sealed but should be mounted away from
sources of engine or exhaust heat. The unit can be secured by means of two #8 screws
through the mounting flanges.
4.
Connect the Bosch sensors to the 6 pin mating connectors on the Wego wire harness.
Connect the black wire to chassis ground, the red wire to a sw12 volt power.
5.
The white wire is the signal for the first O2 sensor and should be plugged into a selected
“A- WHT” terminal. The blue wire is the signal for the second O2 sensor and should be
plugged into a selected “A- WHT” terminal.
Copyright c 2008 Computech Systems Inc. 29
