HFS3 initial setup query post install

[Richard L]

We did not have enough detail information of the VW GTI direct injection before the HFS-3 was designed. But with Morne's help, it would be long before read the signal probably.

It was a great Match between Germany and Argentina!!!

Once we have the spray configured, you will have a lot more fun in all weather especially in summer time.

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Yup... Morne is great and very helpfull. Used him for almost all my stuff that I havn't done myself. Knows his stuff

Looking forward to the progress

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So it sounds like the problems may just have been wiring related.

Morne currently has the car so hopefully will be able to sort it tomorrow.

Will let you know

[g60 golf]

Hi Guys.
Came across this when i was running google search and saw the foroum.
Well this issue is something else.
I was told use the map to start injection and comp for the injection but i dont believe it is the way to go.One must get the idc correct then one can add the mps for correction.

Richard i will get the voltage readings for you on sunday as i will be busy with the BWA as both cars are the same now in terms of running much better with the mod u gave me to do but the lift off the gass and it injects is a problem.

I will get the readings and then we can take it from there.
The fsi injector cycle is strainge that both wires have same voltage [+_].
I will not be at work Monday and Tuesday so pls contact me on the mail i provided.

Can one not use the green wire and step up its signal as only when one turns up the threshold will it fire the injection?

[Richard L]

I wonder if you have a captured waveform of the FSi signal.

I notice that there is MAF sensor (yellow wire) to the ECU,. This signal is pretty close to the engine load except this does not contain accell. and decell. enrichment compensation/correction as the IDC signal. But is ios far better than boost only (single dimension).

Lifting off is a strange one, I hope it is reflected on the pin16.

One other useful measurement, can you put the meter on both wires and tell me if the voltage increase with load (blipping the throttle)?

The green wire is pretty fixed for the conventional fuel injection system, detecting a switch-to-ground signal (saturated). Feel free to try, both inputs are protected up to 600V.

[g60 golf]

Hi Richard.

I spoke to a buddy and he says they tested the injector voltages as they wanted to do something for a management system and he says the injectors can peak at a huge voltage.
I will be checking tomorrow with Riaz and i will try hook the green wire and map sensor to see what it does.I dont want to use map sensor.
I have a feeling the injectors are staing open [high current] when one drops a gear for a few seconds to see what the driver wants to do accel or deccel.Thats why the Water Meth thinks it is under load.When im back at work i will see if i cant use the dso cables on the vas to see the injector wave pattern for you too.
This is rather intresting to see how your system works and the fsi injectors work.
I will feed back via mail to you.
Thanx for the help.

[Richard L]

The direction injection drive voltage varied between 2V to 80 and spikes up to 300 volts.
Every DI drive singal is slightly different from each other. Possibily the taken most part of our circuit design work, particularly on the input stage.

We have more or less summed up on most cars with the exception of the VW golf. We did not have any problem on their tdi (PID). Once we have established the pin 16 voltage, I will have a better understanding of the signal.

As regarding the FSI engine. Audi on partucular, the DI algorithm on the A3 fsi is again slightly different from the A4 fsi. This is most annoying for us. We are workign on the next generation of "all-in-one" detection circuit and should be ready soon. We are talking in week rather in months.

We shall see what more new surprises are installed for me when I get the pin16 voltage from you in the next few days.

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Any updates ?

Think Morne said new boards are comming. Any ETA yet ?

Dying to get this system working correctly

[Richard L]

I believe we are shipping between one to two weeks.

[g60 golf]

Hi Richard.
The boards are here and i will be getting them Monday.
Thanx for all the help and putting up with all my questions.Please if you ever need help with the VW gve me a shout.