Pump starts then stops within a second. MKVI GTI - HFS-4
 

Hello everyone,

I've had issues with my setup not long after getting it all set. Tuner/workshop is 500kms away from where I live so I can't just drive there whenever I face problems.

It started with leaks from the elbows, bad installation of the nozzle in the TBP and not a smooth rate of flow from looking at the gauge.

I recently faced an issue where the pump starts to pump once I hit the operating boost but then stops within a second! I moved the jumper to DFS and logged my car to see if there's any Inlet Air Temperature drop but there wasn't much as it used to be. Plus I've got a big amount of timing pull which tells me that there's not spraying into the engine!

I don't drive my car no more as there's no more joy with all this rubbish going on. All I do is drive it to only log it after a fix to see if there's any change.


Car and Setup:
- MKVI GTI
- HFS-4
- 2 Nozzles: 1.Throttle body pipe. 2.Throttle body spacer.


http://i394.photobucket.com/albums/p...pszqmjjmw3.jpg

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

1. Can you post a picture of the underside of the circuit board. I like to see the soldering mods.

The settings of the jumper look good to me.

2. A picture of the jet and FAV.
3. Place of purchase?
4. Which wiring diagram did you follow?

I can help you, no need to travel 500km.

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

Thanks alot Richard.

I managed to quickly take these pics. I was in a rush, so I couldn't open up the controller to take a pic. Will do that tomorrow once I leave work. I found out that the nozzle on the TBP leaks out. Mind the dust, it's always like this here in the Middle East.

I bought my kit from Abu Dhabi, UAE and they did the installation. So i believe that they used the TSI diagram for my my car specifically.

http://i394.photobucket.com/albums/p...pszw0iwkk4.jpg
http://i394.photobucket.com/albums/p...pshb9dxrte.jpg

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

OK, I will wait until tomorrow for the underside of the controller.

Regarding the nozzle leak, it is an installation problem may be it just need tightening up.

The electrical connector of the FAV appeared to be broken, in time the wires will corrode and the system will stop working.

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

I'll take the intake off and have a look at the FAV. In case the wires are corroded, what could be done? Please don't tell me to buy a new one as they are quite pricey.

And regarding the pics, Ill send them tomorrow as soon as I get my hands on the car.

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

Fill it up with silicon after inspection. Not the whole connector, just the opening section.

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

As regarding the flow indication at idle, it is most probably due to interference. Are are mechanically minded? If yes, I will suggest a solution for you. BTW, who was your installer?

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

I guess yea. I've installed some engine and suspension mods on my car my self. Fixed few leaks on the wmi as well. What are your suggestions?

I installed the kit in Tensai tuning and even had my K04 conversion there too. The system was working fine but then a problem dragged another problem and here am I now spending more time fixing rather than enjoying the drive.

Here's a video of how it goes when the jumper was on the DHB:-
Aquamist HFS-4 Issues

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

OK, lets do a test if the system is seeing the IDC.

Put the CLP jumper link (not used for your car) to FDC. This link hijacks the gauge to display fuel flow. do a video as before if possible.

The DHB jumper will not make any difference to your tests.

I also like to see a picture of the trimmers.

Re: Pump starts then stops within a second. MKVI GTI - HFS-4
 

A picture of the underside of the circuit board too.