waterinjection.info - Power Issues/Seems to be related to ESP/ABS -- Audi s4

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- - Power Issues/Seems to be related to ESP/ABS -- Audi s4 (http://www.aquamist.co.uk/forum2/vbulletin/showthread.php?t=1937)

m.s4	06-02-2011 11:54 PM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

Quote:

Originally Posted by Richard L (Post 14342)

I wonder if you can wiring the red wire of the grey connector directly to the igniton key switch (run of pre-crank position). Make sure it has a full 12V.

This inteference is so strange.

Is the s4 a FSi (direct injection system)? I think it is just a conventional injection system.

It's already wired to the ignition switch.

it's not FSI. I have it tapped into a fuel injector wire.

m.s4	20-02-2011 08:51 PM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

Richard,
I have both power wires going directly to the batter with a switch in between the smaller power wire that comes from the ecu harness.

If I turn the car on then power up the aquamist everything turns on normally, then when I turn the car off (if I don't turn off the aquamist first) as soon as the car is off the pump starts running (is this normal?)

Also, If i have the car off and start the system directly from the battery, once it is booted up the pump runs (gauge lit and bars flowing).

Is my controller bad?

Regards,
Mark

Richard L

21-02-2011 01:22 AM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

Do not start the system until the kety switch is on the pre-crank position. If the system is switched on (battery power), the system will spray fully will flood your engine.

This is becuase if there is no 12V power to the fuel injector, the system will mistakenly think the injector is at 100% duty cycle and start o inejct.
Only manually start the system after the enigne is running.

When the system was powered from the battery, did you still have flickering problems?

m.s4	21-02-2011 02:17 AM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

Quote:

Originally Posted by Richard L (Post 14412)

Snowing pretty heavily, but I didn't on the way home tonight.

I will see more tomorrow.

Richard L

21-02-2011 08:49 AM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

Please remind me, which part of the world are you located?

m.s4	21-02-2011 05:48 PM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

Quote:

Originally Posted by Richard L (Post 14414)

Please remind me, which part of the world are you located?

Minnesota, USA

Acted up this morning with everything hooked directly to the battery, not sure where to turn now.

Richard L

22-02-2011 01:20 AM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

I am wonder if the unit is subject to smal mosture condensation on the circuit board. Please pm me youir address and I like to send you another controller and see if it behaved the same.

During this time, can you rap up the unit or put it in a plactic bag and let me know if it improves.

Richard

m.s4	23-02-2011 04:10 AM

Re: Power Issues/Seems to be related to ESP/ABS -- Audi s4

PM Sent,

The controller is inside though, in the dash on the driver side.

When I get wheelspin I'm seeing a slight dip in volts but nothing under 13-13.4v.

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