Nistune Forums

Still got problems When i go up to near 0.90 lambda the car starts to studder and missfires alot. What could it be Making it missfire? Now i go around 0,85 on idle. Not good and not ekonomi. Ty

yes it is, lambda is lambda no matter what fuel is used (finally a standard we can all use). keep in mind that if your engine is using crank case recirculation system, must use a low ZDDP oil or an ethanol friendly oil or the exhaust catylist won't last too long. Ok thanx. But i dont have the catyl...

Yes thx. I got it fixed. I changed Map for E85 again and fixed some other stuff. Im going to tune à bit tomorrow. Now lambda is around 0.85 on highway. I think i Will set it at around 0,95.? Lambda should be same with E85. Ty

Fixt it so i got it approved. Is a litle bit to rich Now but thats better then lean. Ty

Could it be that i just got to big injectors? 850cc, it was 50/50% gas vs E85 before. Maybe it dosent work with that big injectors with gasoline with around 330hp? I Will try to do 50/50 tomorrow and see if it gets bryter. Takes time to get some answers and if My car burns up i dont get anything rig...

aah my first map was not saved with other logs

Hi matt Thank you for answers. I have the z32 300zx ECU. I bought the car like this so im sorry, i havent got it running with original parts. I changed maf and injectors in nistune. I pressed original 370cc before change.Thank you for helping me. I logged some today, i dont know what you whan tto se...

Forgott to say that When in idle the car studders with around 13afr but When i go down to around 11-11,5 afr it runs great on idle :/ if i get near 14,7 it studders alot. Im going crazy.

on good thing you can do is take a bit and read the nistune tuning manual. it's available for download on http://www.nistune.com it gives very good pointers. you can always begin from scratch... take the OEM tune, change injectors and maf, adjusting K constant accordingly such as latency... of cour...

unex wrote:what about AFR ? I think this is the first thing you should start at.

I cant get it to be in the same place. I changed to lambda values insted but on idle around 14-1 and down to around 12 at full throttle. But between that it Can to up against 15 and it cant be stable.

Hi im from sweden so im sorry for my english. I have a problem with my new car r33. Here in sweden we have to have exakt right gases from the exaust and i got the wrong values. so i cant drive the car legaly and i dont got full enjurence. I dont know what the owner before me have change in the map b...