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-   -   2011 WRX STI Safe-Mode (Help) (http://www.aquamist.co.uk/forum2/vbulletin/showthread.php?t=3216)

dlheman 02-08-2020 05:02 AM

2011 WRX STI Safe-Mode (Help)
 
Hello,

So I connected the orange wire to the pink wire as according to the instruction manual in order to use the safe-mode feature, and then set the failsafe pin to FS1. Failsafe is enabled by placing it on DHB.

I turn on the car and it immediately went to safe-mode (indicated by the clicking noise and fan turning on and off). Even when the Aquamist system is on it is still on safe-mode. Starting the engine will display CEL also.

I tried removing the CLP pin (which should mean it is now 8v) but still no good.

That being said, I noticed around the area where the ECU is, there is an unplugged green socket. This is the socket to connect to turn on safe-mode from factory. So that means, when there is 0v (socket unplugged) then the safe-mode is disabled. But the Aquamist manual said, the orange wire by default is sending 4.7v under "no fault" and switch to 0v upon fail-safe activation or the gauge is switched off.

Can anyone help how to use use this feature?

Note: I still have the wastegate failsafe method wired but I supposed that is not an issue and allows me to choose between FS1 (if it work) and FS0?

dlheman 02-08-2020 05:38 AM

Re: 2011 WRX STI Safe-Mode (Help)
 
Oh, wait.

FS1 and FS0 is got nothing to do with signal channel is it?

Is this more of 0-5v or 5-0v?

dlheman 02-08-2020 10:17 AM

Re: 2011 WRX STI Safe-Mode (Help)
 
Solved!

The switch to safe-mode during failsafe activation is working flawlessly.

Richard L 03-08-2020 08:05 AM

Re: 2011 WRX STI Safe-Mode (Help)
 
Quote:

Originally Posted by dlheman (Post 25105)
Oh, wait.

FS1 and FS0 is got nothing to do with signal channel is it?

Is this more of 0-5v or 5-0v?

This is correct

dlheman 03-08-2020 04:01 PM

Re: 2011 WRX STI Safe-Mode (Help)
 
Hi Richard,

Yes I only realized it when i re-read the manual.

https://scontent-xsp1-1.xx.fbcdn.net...f0&oe=5F4EBF93
No more boost to dump when the failsafe is triggered as the lowest boost setting is on wastegate pressure.

https://scontent-xsp1-1.xx.fbcdn.net...78&oe=5F4C4D37
Timing immediately reduced when failsafe is triggered as Ignition Advance Multiplier drops to zero.

dlheman 04-08-2020 01:09 PM

Re: 2011 WRX STI Safe-Mode (Help)
 
Hi Richard,

I read your post at IWSTI forum: https://www.iwsti.com/threads/input-...-hfs-3.188058/

"However, you can use the relay output to actve the car's "safe-mode" instead of reducing boost. Don't forget "test-mode activation" will reduce boost anyway."

Do you mean it is the brown/white cable to connect to the safe mode instead of the wastegate? If so, do I just splice the Pink (pin27, socket B) cable and connects both ends to the brown and white cable of the Aquamist?


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