Nistune Forums

The O 2 sensor does seem to be disactivated but there is no option in the control flags to activate this. The car runs pretty good at full operating temps cruise is about 14.0 :1 and at idle its about 13-14:1 so im pretty sure i have the K in more or less ball park and the MAF scale more or less i h...

Also not sure why my fts is going up all of a sudden it hits about 28% and floods the engine then goes back to 0% all of a sudden it wasn't doing this before when I had the k constant at about 470 not sure why I'm thinkingmaybe it goes out of scale and wants to lean out.??

OK sounds good. Thanks .I did scale up the fuel map a bit so I would have to match the timing scale with the new fuel map scale correct.? I put the k constant back to stock and what would you know it doesn't lean out no more on cold start wow I'm amazed.. I'm thinking now I can have fun driving it a...

OK sounds good Matt i really apprieciate your help. So would you say to increase the K constant up back to stock and turn down the TIM.? Or would i be increasing the K constant up higher than stock for the bigger injectors. Im only running 440cc so maybe stock K then increasing the scales a bit no?

OK the only thing is i dont see a temperature enrich option in the nistune?

OK so temperature enrich tabels will have no effect on the cold start lean out issue.? So does the feature pack version atomaticly adjusts for cold start operations.?

Thanks

SO i ended up getting my car running pretty good the main issue i was having is that the HPxn1 MAF sensor is a different voltage compared to stock so with the Nistune ECU i am only able to run the HPxn1 sensor. With that out of the way car runs really well at operating temps pulled good and at full ...

OK so since it was a fresh rebuild there was a couple issues with my setup. I put stock injectors back in and a stock MAF to check the operartion of the engine with original equipment . Ended up bieng that the Distributor was off a tooth throwing everything into a big loop. Im gonna run it stock to ...

I have the feature pack z31 88 software uploaded on my ecu. Ive been trying to get it up and running the TIM is way up almost 900 just to get it running to idle. i have 440 RC injectors with a hpx n1 MAF sensor i recalibrated the injector sizing and did the MAF VQ scaling at 73 percent. I Currently ...

Try adjusting the usb female plug into the side of the ECU. There should be two screws on the plug hold down. I had to adjust mine with the cable plugged in and worked perfectly after.