LS Wiring Harness
12
Pin Outputs
A Pedal1
B Pedal2
C Coolant Temp
D Oil Pressure
E Camshaft signal
F Crank signal
NOTE:
When temperature sensors are shared, the voltage
pull-up on the FuelTech ECU must be disabled.
7.11 Coils connectors
There are 2 coils connectors, even (Right) and odd (Left – Driver side)
which must be connected to the stock coil harness of the engine.
8. Standard Sensors
8.1 Fuel and Oil Pressure
FuelTech PS-150/300/1500 is a high precision sensor responsible for
general pressure readings (fuel, oil, boost, exhaust back pressure, etc.)
It can be purchased Online at www.fueltech.net or from an authorized
FuelTech dealer (check the website to locate the dealer nearest to you).
FuelTech PS-150/300/1500 sensor below:
- Connection: 1/8” - 27NPT
- Pressure Range: 0 to 150/300/1500psi
- Power Voltage: 5V
- Output Scale: 0.5-4.5V
- Electric Connector: 3-way Metri-pack 150
- Pin A: Battery’s Negative
- Pin B: 5V supply
- Pin C: Output signal
FuelTech part numbers:
- 5005100020 - 0-150 psi sensor
- 5005100021 - 0-300 psi sensor
- 5005100022 - 0-1500 psi sensor
8.3 Engine Temperature
This sensor is very important for a good running engine, as varying
engine temperatures dramatically affect an engine’s fuel and timing
requirements.
On water cooled engines, place this sensor near the engine head,
reading the water temperature. On air cooled engines, install this sensor
reading the engine oil temperature. One of its pins is connected to
the battery negative, the other to the white #5 wire.
Part numbers: FuelTech 5005100016 or GM 12146312
7.10 Injectors Connectors
The LS Harness has a 10 way Injector sub-connector that will
connected to the injector sub-harness (EV1/EV6/Denso) and then
plugged to the injectors itself.
8.2 Intake Air Temperature
With this sensor, the ECU can monitor the intake air temperature and
perform real time compensations. One of its pins is connected to the
battery negative, the other to the white #7 wire.
Part numbers: FuelTech 5005100015 or GM 25036751
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