FiTech Go EFI Classic 30020 사용 설명서 - 페이지 5

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Above - The supplied Coolant Temperature Sensor is threaded into

the water port in the intake manifold. Use Teflon tape on threads.

Injectors

Figure 13

Above - The throttle body has four 80-lb injectors already

installed. This arrangement will allow the system to supply enough

fuel flow for up to 650 HP. The throttle body has the injector sub-

harness pre-installed and ready to go.

Wiring the EFI System

See the wire chart (Figure 16 on page 6) which lists each wire

in Harness "A" that is used in the system and what it connects to.

NOTE: Typically some of the wires listed in the chart on the next

page may need to be extended. It is strongly suggested that any

wire ex-tensions are made with the same gauge and color wire as is

used in the supplied harness. Make connections as a soldered

joint rather thanacrimpedconnection.Utilizea shrinkwrapped

sleevecovering all connections.

All

modifications

Figure 15

made to wiring can

only be made on

wires listed in Wire

Chart Figure 16 on

the next page such

extensions

Ground

cuts.

Any modifica-

tion of the ECU main

Fan 1 - Gray Wire

harness (see Figure

7) other than these

listed wires will result

Fan Circuit

in a VOIDING of the

FiTech EFI warranty.

Figure 11

Injector sub-harness

Fuse

Battery

Relay

Ign/Acc

Circuit Fuse

Fan

Figure 12

Above - The CTS connector on the main wiring harness is plugged

into the Coolant Temperature Sensor in the manifold. (1/2" NPT adapter

supplied in kit)

Injector sub harness

connector

See Figure 7. Connect the injector sub-harness onto the main

harness. Make sure the connectors are securely fastened.

On Engine-Adjustments

When you set idle speed, you will notice some new sounds. The first is

ticking from the injectors and it is normal. You may also hear air

whooshing or whistling at idle. Barring a vacuum leak, this is likely the

bypassed air from the Idle Air Control (IAC valve) and this is normal. The

IAC valve maintains idle speed when the AC compressor or electric fans

click on.

IAC Setup

The idle screw on the throttle body needs to be adjusted. This needs to be

set so that the IAC value is nearly closed when fully warmed up and in

idle 3-10 IAC Steps are recommended for a fully warm engine, out of gear,

at idle. When the engine is at idle, the IAC will learn the necessary position

to maintain the RPM at the Target Idle Speed. When loads are placed on

the engine or when the throttle is open, the IAC steps will move around,

this is normal. It's best to adjust this screw from a more open position to

Ground

start with. This will allow the engine to start at a high idle, which will

make adjusting the IAC easier. Follow this procedure:

1. Start the engine and in your Handheld go under "initial set-up."

2. Go to "idle setup" and find "idle set mode" and switch to "Adjust"

3. Start the vehicle and find IAC Steps on the dashboard. This number

needs to be within 3-10 at operating temperature. If the number reads

Ground

zero then slowly turn the screw OUT (counterclock-wise) until the IAC

Steps reads between 3-10.

Figure 14