Turbosmart FUEL CUT DEFENDERS - FCD1 (pneumatic) User Manual

How to install your fuel cut defender

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IMPORTANT NOTES ON YOUR BOOST CONTROLLER
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Consult your local specialist before setting your desired boost pressure and FCD boost level

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Setting boost beyond your engines capability may result in engine damage

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To safeguard against “pinging” or detonation, always use the highest octane fuel available

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Please check www.turbosmartonline.com for the latest updates and information on fitting your Turbosmart FCD



RECOMMENDATIONS
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Turbosmart recommends that your FCD is fitted by an appropriately qualified technician

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Turbosmart recommends that the engines Air/Fuel ratio is checked once the FCD and desired boost pressure is set, as any
increase in boost pressure or incorrect setting of the FCD can cause the engine to run “LEAN”, resulting in possible engine
damage

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HOW TO INSTALL YOUR FUEL CUT DEFENDER

CONTENTS

Please check that the following items have been provided in your FCD 1 Kit

Quantity

Description

Use

1

FCD 1

Clamping the pressure signal to the MAP sensor

1

Mounting bracket

Mounts the FCD1 to a secure location

1

M4X4 Button head screws

Secures FCD1 to the bracket

FITTING YOUR FUEL CUT DEFENDER

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Locate the vehicles MAP (Manifold Absolute Pressure) Sensor, it is connected to the engines wiring harness by three wires, and
has one pressure hose joining it to the inlet manifold (Fig. 1)

-

If you are unsure of the location of the MAP sensor please refer to the specific factory workshop/repair manual for your model of
vehicle

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Install the FCD T-piece between the MAP sensor and the pressure signal. Make sure the arrow is pointing towards the MAP
sensor

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Ensure all hoses are not cracked, blocked, kinked or restricted and all connections are secured with hose clamps

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Mount the FCD with the supplied bracket in a suitable position to allow access for adjustment and be adequately shielded from
heat, i.e. positioned at least 100mm or 4” from the turbine housing or the exhaust manifold


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Before making any adjustment the Clamp Dial (Fig. 2) will need to be fully closed (anti-clockwise)

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Adjustment to the FCD is made by turning the Clamp Dial

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Turn clockwise to increase the fuel cut level and anti-clockwise to decrease the fuel cut level

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Turbosmart recommends that the fuel cut limit is set 2-3 PSI (0.14 – 0.21 BAR) above the desired engine boost pressure

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If you wish to lock the setting of your FCD to avoid further adjustment, use a 2mm Allen key to tighten the detent grubscrew in the
side of the FCD until the adjustment knob is locked


TROUBLE SHOOTING

If experiencing difficulties the following checks will cure 99% of problems experienced when fitting a Turbosmart FCD

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Check that the FCD is installed on the correct engine sensor. (MAP sensor) (fig. 1)

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Check the joining hoses for splits, cracks or loose connection

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Check that the joining hoses are not blocked or kinked or restricted

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Check to see if the FCD is blocked or contaminated with dirt, oil build up or debris

Product Name:

FCD 1

Product Description:

Pneumatic Fuel cut defender

Product Number:

TS-0303-1001

Figure 1 MAP Sensor (Subaru WRX)

MAP sensor

Pressure source

Figure 2 Clamp dial

Clamp Dial

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