
RACELOGIC Traction Control Manual V3.0
Page 19
1.8.5 Final Test
Jack the driven wheels of the car and start the engine. Engage a gear and spin the
wheels. When the wheels are spun above 14 km/h does the engine misfire?
Yes - The system is working correctly and the fitting procedure is finished.
No – Check that the RPM source has been connected and is being supplied by
a valid signal by repeating section 5.3.
1.8.6 Common Problems and Solutions
Q - The car will not start
A - Check the fuse – 5A
A - Check the 12V supply to the system. Is it ignition switched? and
ensure the signal does not go to GND during cranking.
A - Check the GND to the system, the grounding point should be a
chassis ground preferably with other wires grounded through the
same point. If in doubt, check continuity to a known GND such as
battery GND.
A - Check the inputs and outputs of the traction control are wired into the
fuel injectors correctly; i.e. The wires with no trace are connected to
the ECU and the wires with traces are connected to the fuel injectors.
Q – The car starts but misfires
A - Switch the adjuster to the off position and see if the misfire persists.
If the misfire stops :
Try to distinguish if the car is misfiring or if it is hitting a rev-limit, if it is
hitting a rev-limit Launch control may be active.
If the misfire is more random the problem may be caused by rogue
signals on the wheel speeds eg Electrical noise. Ensure all wheel
speed wires are run away from all the vehicles HT circuit.
If the misfire persists: Check the inputs and outputs of the traction
control are wired into the fuel injectors correctly.
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