Hey guys...

Before say anything I have a Hyundai Tiburon 03 2.0.

I just boosted it and am running 2 PSI for now to get all the kinks worked out.

There is an issue though. At partial throttle the ECU sees the 02 sensor voltage rich ( because of the larger injectors and SAFC) and decreases the injector pulse. I cant get around this...

On partial throttle I am running 2 PSI and 14.5-15:1 a/f!!! AHHHHHHHHh This is at partial throttle only... at WOT I am running 12:1.

Dont know if this happens to you guys... no hyundai guys had an answer... any ideas??? Dont like running around like this...

Thanks so much,
Andrew

t28
cast manifold
340cc
SAFC II
PLX wideband
MSD DIS II


Modified by adeihl at 6:09 AM 5/12/2004

 

AFC will do that.
ECU thinks it's always in vacuum, and you are keeping part throttle...

I also with voltage clamp and FMU end up in part throttle boost in closed loop (~14.5A/F)... I don't like it.. but.. o'well.. at least fuel consumption is lower :D

 

I think you may have misread the main page. It says HONDA-TECH............NOT HYUNDAI-TECH. Yea yea i know I'm an *******.

 

I know I was oversteppin my bounderies with the post... but I thought the streight H's and crooked H's could get along for a while :-P

I have been thinking of using a Potentiometer on the IAT sensor. Although this will advance timing a bit... I have the DIS 2 unit to help out up top.

Thanks for your replys, I just dont like such lean conditions! esp on boost.

Andrew