I have a ticket in with Haltech support, but am curious if anyone here can help with this issue (I will update thread once solved).

Elite 2500 (NSP), running GM DBW TB and RX-8 accelerator pedal. Tune is roughed in and everything is generally working as expected, except:

ECU will not reliably enter flood clear mode. Most of the time I see 99.x% throttle when depressing the accelerator completely, and the ECU cycles in and out of flood clear mode if I am lucky. I am not able to reliably cut fuel using this method and have had to resort to pulling the injector fuse a couple times. I like the flood clear feature and would really like to get it working.

I have tried calibrating numerous times, and swapped out the accelerator pedal.. no luck. Always see 99.5-99.7% as max TPS (which is just not enough to hit flood clear).


Does anyone know if it is possible to lower the threshold for flood clear mode? Or a way to reliably get 100% throttle in the ECU? I haven't found a way to cheat this, and if I try to trick the calibration I have even more issues. Any help would be great!


Thanks,
Alex

 

afaik there is a setting for max throttle position in the engine configuration i would put that to 99% and see if it helps.

edit:
its called user demand maximum
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also i havent really had to use flood clear mode yet on my car but for me the app sensors show exactly 100% every time with the rx8 throttle pedal. how did you mount it?
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Haha, I figured this out like an hour before I got a response from Haltech.

It was the user demand maximum. I had tried lowering this previously but I may have had some issues with my pedal to throttle scaling as well, tried a lot of things but it's working now!



I have a custom bracket for the RX-8 pedal but it only hits that ~99.5% maximum, even with the pedal loose in the car.. Could be something with the TB but it is a new unit from GM so I didn't want to mess with that (I do have it mounted upside down..).

Thanks!

 

alright i would recommend you set your max throttle position properly btw. most drive by wire throttlebodies open past fully open i have mine set at 96%

 

Thanks for the tip, I will have a peek at that!

 

set it to 80%,