Water/meth basic failsafe setup

[Jo LeForce]

My first WMI tune, using the AEM V3 kit, looking for basic fail safe setup.

The green (boost safe) wire is connected to a digital input. DI is set as follows:

Input latch: off, pullup resistor: on, on level: low, Active edge: rising

The input would trigger two 4D tables under fuel/ignition corrections, adding % fuel and retarding timing.

Does the above sound about right?

Alternatively, is there a way to induce a rev limit and/or a boost cut? 

[Adamw]

Yes that would be fine.  You can put your DI onto a GP limit table or on the 3D RPM limit table if you want to reduce rpm or kill the engine when wmi fails.  

[Jo LeForce]

How can I assign a GP limit table to a DI?

Thank you

[Calvin]

For RPM limit, after you enable the GP RPM Limit table, right-click the table and select 'Axis Setup', you then select DI X (status), x being your pin number.  Set the other axis to 'none'.
  

After that you can now set your limits,

[Jo LeForce]

Back again to this thread, I replicated what Calvin said in the previous post. I disconnected the WM level sensor plug to induce a WMI error, the assigned DI activated on screen, the lower RPM limit got highlighted under GP RPM Limit 1, but still the actual rev limit went high to the normal RPM limit, it never stops at the lower RPM limit assigned to the DI! Is it been overwritten by the main RPM limit table?

[Adamw]

No crystal ball here sorry, you will need to attach your map and a log.  Most likely a start up lockout or activation delay preventing it from activating.

The lowest of all active limits will be in control.

[Jo LeForce]

At normal temp the engine would rev passed the limit set by DI. Attached is the map, I didn't get the chance for a log, I won't have access to the car until after a few days.

01.pclr

[koracing]

On 6/20/2023 at 3:44 AM, Adamw said:

No crystal ball here sorry, you will need to attach your map and a log. 

I got you bro: https://a.co/d/eyZMea9

On 6/20/2023 at 10:10 PM, Jo LeForce said:

Attached is the map, I didn't get the chance for a log, I won't have access to the car until after a few days.

I don't see anything amiss in your tune for that GP limit - but a log of it active and inctive with revving would be ideal.