5 mount ignition module, 6 mount optional exhaust gas oxygen sensor, 7 route wiring harness and connect sensors – Haltech E6X Manual DOS Version User Manual

Page 16

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E6X Manual

16

1.3.5 Mount Ignition Module.


The ignition module is used to drive the high currents required to energize the ignition coils.
All vehicles that have electronic ignition control will have an ignition module or ignitor that
may be compatible with the ECU’s ignition outputs, if the existing ignition module is not
compatible (if you are not sure please contact your haltech dealer) installation of a new
ignition module will be required.

Mounting

The Ignition Module has to be mounted on a flat surface (eg. the firewall) to ensure proper
heat dissipation and to avoid stress on the wiring connections. Also it is important to prevent
the module overheating by mounting it away from hot components such as exhaust manifolds
and turbochargers.

Connections

Included with the Haltech wiring harness is the Ignition Sub-loom that allows the ignitor to be
isolated from the main loom until the ECU has been configured for the specific ignition
system.

WARNING:

DO NOT CONNECT THE IGNITION SUB-LOOM TO THE MAIN

LOOM UNTIL THE ECU HAS BEEN CONFIGURED FOR THE

IGNITION SYSTEM USED. INCORRECT IGNITION

CONFIGURATIONS MAY RESULT IN DAMAGE TO IGNITION

COMPONENTS


1.3.6 Mount Optional Exhaust Gas Oxygen Sensor


The optional exhaust gas oxygen sensor must be mounted in the exhaust pipe near the exhaust
header or extractors, usually after the collector. The sensor uses the exhaust gas to detect if
the engine is lean or rich. Many late model engines already have provision for an exhaust gas
oxygen sensor and the sensor provided should fit any standard exhaust mount. Some exhaust
systems have the sensor mount up to around half a meter (2 feet) down stream from the
exhaust headers.

If the exhaust system does not have an existing sensor mount then a new mount will have to
be welded to the exhaust system.

When routing the electrical connections to the exhaust gas oxygen sensor do not allow the
harness to touch the exhaust pipe, as the heat will damage them.

1.3.7 Route Wiring Harness and Connect Sensors


Lay the main wiring harness out in the engine bay with the sensors mounted to ascertain the
best fit for the harness. Pass the wiring loom through a hole in the engine bay firewall and
into the passenger compartment where the ECU will be mounted. Either use an existing hole

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