Injector pulse Pin 17

[flyingbrick242]

Richard,

If I am following your thoughts:

1-Check for voltage drops between inj+ and fusebox +, this difference might be highier then your limit allows.

2-Take the +12v from the fusebox currently powering up my DDS3 and connect it to my fuel injection ecu switched power.
Is this correct?
Thank You

[flyingbrick242]

Originally Posted by flyingbrick242

Richard,

If I am following your thoughts:

1-Check for voltage drops between inj+ and fusebox +, this difference might be highier then your limit allows.

2-Take the +12v from the fusebox currently powering up my DDS3 and connect it to my fuel injection ecu switched power.
Is this correct?
Thank You

Richard,

Update to above.

There is a 1.2 voltage drop between the +injector signal from ecu and fusebox cable pin 24
Will there be any advantage taking +15 or switched key voltage from ecu to correct this concern??
It looks like we are too far apart from your desired threshold.
What are your thoughts?
Thank You for your support.

[Richard L]

Originally Posted by flyingbrick242

Richard,

Update to above.

There is a 1.2 voltage drop between the +injector signal from ecu and fusebox cable pin 24
Will there be any advantage taking +15 or switched key voltage from ecu to correct this concern??
It looks like we are too far apart from your desired threshold.
What are your thoughts?
Thank You for your support.

Basically, it will work well if you move the DDS3 power in to the fuel injector +. This way, the difference will be much cloaser to each other.

I can modify the DDS3 for you to allow the bigger volatge drop at your injector. At present it is 0.5V but I increase it to 5-6V. No rcharge, just need you to send the DDS3 Junction board back to me.

[flyingbrick242]

Richard,

It will be very simple for me to tap into the +feed for the injector and see what results occur.

Question and concern:: What is the power consumtion of the DDS3 box?
My concern will there be too much taken from the + signal of injector and ecu.
Please Advise.

[Richard L]

Originally Posted by flyingbrick242

Richard,

It will be very simple for me to tap into the +feed for the injector and see what results occur.

Question and concern:: What is the power consumtion of the DDS3 box?
My concern will there be too much taken from the + signal of injector and ecu.
Please Advise.

The DDS3 draw about 100-250mA (low to full backlight intensity) to 1.2A when the HSV is at full flow. You can always run a separate +12V to the HSV.

[flyingbrick242]

Richard,

I have rewired the +12v for the dds3 directly off of the ecu power up supply and have the following observation:

1-The flow gage has a hard time to start up, the illumination is flickering then a few seconds later gage is running.
2- The inj/idc led is lit up all the time.
3-When trying to run test mode the flow gage shuts on and off with no flow meter working.
Yellow led is on all the time.
Please advise.

[Richard L]

By moving the DDS3 12V source to the injector supply rail, the start-up timer will be interfered with by a large amount of spike and quiet a bit of noise ripples.

I think we can solve this problem by sendng you a modified v10 board and upon receiving and successful install, return the board to us by USPS in your own time.

I therefore need your postal address by pm. I will airmail you a v10 tomorrow.

Richard

[flyingbrick242]

PM has been sent

[Richard L]

Just a matter of interest, did the person who you bought the system from had this problem?

[flyingbrick242]

Originally Posted by Richard L

Just a matter of interest, did the person who you bought the system from had this problem?

He claims NO.....and I would have to believe this since it was about 1,5 months ago when he had purchased it.