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Check engine light


jonolee18
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Hi All,

 

I am hoping that someone can help tell me if I am on the right track for my old NA pinto powered escort.

I  am running a g4+ atom and don't want to use up more outputs if I do not need to but I think I need some kind of check engine light. 

It turns out I ran my last event with the intake air temp senor not plugged in so it defaulted to 150°C. :P 

I have checked and luckily the maps only reduce fuel under 50% throttle (not much of the day was spent below 50%) but it did pull at least 5 deg advance everywhere.   

I have also recently installed a GP output on a spare ignition channel which I am using as a simple shift light (eg.  SW Cond 1, RPM >6500 rpm).

 

My question is can I use the same shift light to show the CE light aswell.  

How I think I am going to do it is using COND 1 or 2  as the switch logic and with SW Cond 2 set as Aux Virtual Valve1 = ON (CE light is not an option here).  

I can then set  Virtual Aux 1 = CE light. 

 

Am I then right in thinking I can set the Parameters low/high warning values to turn on the "shift light" through the CE light system? 

The other way is to just set my own limits by setting Virtual Aux 1 = GP Output but I will only get 3 limits doing it this way (Cond 1 or 2 or 3).

 

Cheers, Jono

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Yep, you're on the right track.  However, it is not the parameter high/low warning that triggers the CE light, it is the "error high"/"error low" values on the analog input settings, so you have to ensure these are set up with realistic numbers.

Note you can also "stack" virtual auxes if you want to have more than 3 conditions for any function.   For instance you can have one of the conditions on virtual aux 1 be that virtual aux 2 must be on, then add your extra conditions to VA2.

 

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20 minutes ago, Adamw said:

Yep, you're on the right track.  However, it is not the parameter high/low warning that triggers the CE light, it is the "error high"/"error low" values on the analog input settings, so you have to ensure these are set up with realistic numbers.

Note you can also "stack" virtual auxes if you want to have more than 3 conditions for any function.   For instance you can have one of the conditions on virtual aux 1 be that virtual aux 2 must be on, then add your extra conditions to VA2.

 

Excellent thanks. Well looks like i have got enough info to give it a go. Cheers.

Good tip about stacking the virtual aux's to give even more options. 

 

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