The later model koenigseggs use a flex fuel sensor.
Interesting and good stuff for nutting it out.
In regards to GM, we have been using flex fuel sensors (globally) for a number of years now, not something recent
kroma11 wrote:Seems like there is a huge amount you can tune / program these modern day ECUs compared to what was around 20 years ago!!! Obviously there will be progression but still.... 27 safety routines to check stuff? Wow!!! Wish I could program my Nissan ECU like this lol.
kroma11 wrote:Sounds like good progess!!
Correct me if I'm wrong; isn't E85 stoich around 9.7? Does this mean you're able to run the EZ30 super lean on E85? Meaning more power while still maintaining decent fuel economy?
dr20t wrote:The logic in the 02 sensors differ between the years though, don't they Matt? Scaling is different on different ecu's
So this wouldn't be possible for the prefacelift GT lib would it? For two reasons - one being cal memory (512kb) and two being the dual 02 sensor / lamda sensor setup in the dump?
What I'm not getting is how the rom can be changed without a physical reflash/ map change? For recoding doesnt the ecu need to be in write mode with the two green connectors plugged in?
Pretty freaky that a few coded sequences can flick maps across that change OL fueling, maf scaling, ve tables and timing
If this is correct jump on it people
kroma11 wrote:Ah of course, didn't think of that! Based on those AFRs, do you have any approximate numbers yet on KM/tank on E85 and power output with a KiDo tune?
I guess the best thing is that you can switch between E85 and regular 98RON on the fly!
So are the E85 tunes still in an experimental phase or are they already being rolled out to customers?
KiDo_Tuning wrote:
Primary OL fuel table is a multiplier on the MAF scaling to get a desired injector pulse. So target 10.88:1 AFR in OL fuel table which is 30% more fuel than stoich. and say your at 200g/sec maf airflow with 10.88:1, then the ecu pumps in the equivalent fuel pulse as what you would for 260g/sec at stoich(not that you would want that!)
So, the E85 map has a seconday OL fuel table that multiplies the figure again. So to add 30% fuel everywhere, the whole E85 additive table would be 10.88 or if you looked at the raw ECU table, the value would be 1.3 as a multiplier. So I use an IAM of 2.00 to define E85 mode and add fuel, then have a High KCA timing value additive that adds timing on top of KCA.
Heater element is the key although I am adding coding when I get home to adapt a Haltech Flex Fuel sensor into a spare ECI input if I can find time
Return to 3.0R & 3.6R engine specific
Users browsing this forum: No registered users and 3 guests