Haltech HT045505 - Manual (Page 5)

Harness Pinout Termination Descriptions
The Haltech RB30 terminated harness utilizes the following terminated connections
Engine Coolant Temperature Sensor (ECT)
The Engine Coolant Temperature Sensor provides the ECU with a signal that allows
the ECU to know the current engine temperature.
A Haltech Coolant temperature sensor (HT010300) is required to be fitted in the OEM
location for correct operation and connection.
OEM Coolant Temperature Sensor Gauge (ECT Gauge)
Provisions have been made in the harness to accommodate the OEM cluster
temperature gauge. A wire has been run from the gauge to the in cabin harness labeled
ECT gauge. Connect to the OEM coolant gauge sensor and the dash cluster for correct
operation of the cluster gauge.
Intake Air Temperature Sensor (IAT)
The Intake Air Temperature Sensor provides the ECU with a signal that allows
the ECU to know the current intake air temperature.
A Haltech Air temperature sensor (HT010200) is required to be fitted to your intake
manifold to take advantage of this feature and is required for VE tuning of your engine.
A high mounting position in your manifold is recommended
Manifold Pressure Sensor (MAP)
The MAP sensor measures changes in the intake manifold pressure which result from
engine load and RPM changes and converts these into a voltage output so the ECU
knows the manifold pressure.
The terminated harness is provisioned with the ability to connect an external MAP
sensor, if the internal ECU MAP sensor is not used.
Mount a Haltech 3 Bar GM MAP sensor (HT010104) and connect it to the harness
via this pre terminated connector.
Fuel Pressure Sensor (Fuel-P)
The Fuel-P labeled connector connects directly to a Haltech fuel pressure sensor.
This will enable the user to know the current fuel pressure of the vehicle.
An optional fuel pressure sensor must be fitted. Haltech Part # HT010904
Fuel Pressure is allocated to Analogue Voltage Input 3 (AVI3) on the Haltech Sport ECU.