Yellow RJ45 Connector & 4 way power connector

[Richard L]

I looked into the diagrams.

Both wire of the fuel injectors is the same colour.

Really not that easy to identify. But one of the two wire is joined up with the other seven injector. The junction where all the eight wires are joined together, there is a thick "blue and red" wire meeting it, This bunch of wire are the fuel injector (+).

Let me know you are able to track them down.

[stevebez]

O la la ... Ill try but most of the wires (and terminations) are all bound into the harnesses...

BTW your advice on getting the system started worked perfectly and the system ran its startup test flawlessly...

Now just to find the injector lead.

Can I not just tap from the wire right at the injector?

[Richard L]

Yes, this is the best way.

Finding out which leg of the injector is positive...


Method 1 (no ignition key is necessaery),
Since the two injector wires are the same color, first unplug the socket from any two injectors. Test the pins inside the socket between the two sockets for continuity, the (+) leg is the one that pass the test. Mark them.


Method 2 (require putting the key switch to pre-crank position):
Unplug on einjector socket, one of those should have a +12V signal, the other doesn't

[stevebez]

Super Ill try that... thx

[stevebez]

Originally Posted by Richard L

Method 2 (require putting the key switch to pre-crank position):
Unplug on einjector socket, one of those should have a +12V signal, the other doesn't

Can I use any grounding point or would it be across the two pins on the plug

[Richard L]

Black probe on ground please.

Richard

[stevebez]

Ok 12v on injector found and connected , also connected green wire for Injector -ve.

On test startup all lights come on as expected except the red rj45 led. The yellow and blue Rj45 illuminate and the guage "boots" correctly. Also no other on board led's light up.

Trying to detect IDC signal also fails.....

On a pump test using TST jumper pump runs and pumps fine....

Any thots?

It's just on the startup test that the RED plug (fcm) does not illuminate, and the PC board led do not illuminate....

[stevebez]

So basically

1. Ignition key on the “OFF” or “0” position:
- Dash Gauge is plugged in and switched on.
- All the RJ45 plugged are colour matched.
- 4-way plug is engaged into the socket.
- No leds should be lit anywhere.

PASS

2. Ignition key on the “ACC” or “#1” position:
Absolutely no change, same as the above conditions.

PASS

3. Ignition key on the “pre-cranking” or “#2” position:
- Do not crank. Observe the gauge and controller leds
- Yellow led on the gauge will stay lit for 5-10s before
the rest of the gauge lights up.

PASS

- “S” and “W.INJ” led should be lit on the gauge.

PASS

- All the green leds on the HFS-6 controller should be
lit with the exception of the green connector.

FAIL. RED CONNECTOR, F-IDC, THRES NOT LIT

3. Start the engine and let it idle for a minute or so:
- The green led on the controller should flicker

FAIL. RED CONNECTOR, F-IDC, THRES NOT LIT AND NONE FLICKER

- The yellow led on the “green” and “yellow” RJ Connector
socket should flicker.

FAIL. LIGHTS ON , BUT NO FLICKER

- Flicker should speed up with engine speed.

FAIL. LIGHTS ON , BUT NO FLICKER

[Richard L]

Lets work on the rest.. in green text

1. Ignition key on the ?OFF? or ?0? position:
- Dash Gauge is plugged in and switched on.
- All the RJ45 plugged are colour matched.
- 4-way plug is engaged into the socket.
- No leds should be lit anywhere.

PASS

2. Ignition key on the ?ACC? or ?#1? position:
Absolutely no change, same as the above conditions.

PASS

3. Ignition key on the ?pre-cranking? or ?#2? position:
- Do not crank. Observe the gauge and controller leds
- Yellow led on the gauge will stay lit for 5-10s before
the rest of the gauge lights up.

PASS

- ?S? and ?W.INJ? led should be lit on the gauge.

PASS

- All the green leds on the HFS-6 controller should be
lit with the exception of the green connector.
FAIL. RED CONNECTOR, F-IDC, THRES NOT LIT
Richard: This statement is referring to the green leds on the RJ connectors. Not the red led on the controller board.
Update: The green led on the read harness on newer HFS-6 moitors the flow sensor's turbine movement.


3. Start the engine and let it idle for a minute or so:
- The green led on the controller should flicker
FAIL. RED CONNECTOR, F-IDC, THRES NOT LIT AND NONE FLICKER
Richard: Not until the green wire is detecting the fuel injector IDC properly, it will not flicker. Tell me how go went about connecting this wire to the fuel injector (-).

- The yellow led on the ?green? and ?yellow? RJ Connector
socket should flicker.
FAIL. LIGHTS ON , BUT NO FLICKER
Only the yellow led should flicker, green should be solid. This is further proof that the IDC is not read properly is th eyellow led doesnot lit up of flicker. Test the green wire of the yellow RJ connector by grounding it momentarily. You should see those two yellow leds light up.

- Flicker should speed up with engine speed.
FAIL. LIGHTS ON , BUT NO FLICKER
The green led on the yellow RJ conenctor socket should be a solid green.

[stevebez]

My replies in red...

- All the green leds on the HFS-6 controller should be
lit with the exception of the green connector.
FAIL. RED CONNECTOR, F-IDC, THRES NOT LIT
Richard: This statement is referring to the green leds on the RJ connectors. Not the red led on the controller board.
Update: The green led on the red harness on newer HFS-6 monitors the flow sensor's turbine movement.
Steve: OK so should the red socket led be lit green? If so, this fails. In the TST test both the red and green led light up on the red socket.

3. Start the engine and let it idle for a minute or so:
- The green led on the controller should flicker
FAIL. RED CONNECTOR, F-IDC, THRES NOT LIT AND NONE FLICKER
Richard: Not until the green wire is detecting the fuel injector IDC properly, it will not flicker. Tell me how go went about connecting this wire to the fuel injector (-).
Steve: Basically connected to the "other" injector connector (i.e. the one which fails the continuity test between injector leads).

- The yellow led on the ?green? and ?yellow? RJ Connector
socket should flicker.
FAIL. LIGHTS ON , BUT NO FLICKER
Only the yellow led should flicker, green should be solid. This is further proof that the IDC is not read properly if the yellow led does not lit up of flicker. Test the green wire of the yellow RJ connector by grounding it momentarily. You should see those two yellow leds light up.
Can you clarify which "those two yellow leds are"? on the board?
UPDATE: Sorry helps if u read the question - I understand which two leds - I will test this but they do light up in the test. Neither flicker though.

- Flicker should speed up with engine speed.
FAIL. LIGHTS ON , BUT NO FLICKER
The green led on the yellow RJ conenctor socket should be a solid green.

Can you clarfiy wether the yellow socket or the green socket led should be static and which should flicker?

From above
Only the yellow led should flicker, green should be solid.
The green led on the yellow RJ conenctor socket should be a solid green

In the test, both illuminate but neither flicker..

What about the led lights on the board which should light up on this test?.