Nistune Forums

Hi

I noticed the checkbox "Wideband Display Lambda" and now my AFR reading shows values around 14.7

Still AFR autotune leans out the mixture until the car nearly stalls. I saw values of 1:20

regards
Christian

Yes, that's what I wanted to do when I hit fuel cut

I asked because I thought if TP changes so much something else inside the ECU which I can't access might be out of calibration

Anyway, I'll use the method you described

Thank you
Christian

Hi I think there is a bug in AFR auto tuner. I'm using a Techedge WBO2 2.0 which outputs the lambda value. It seems that AFR autotuner is thinking 1.000 means mixtures of 1:1 or 1:10 and severely leans out the mixture until the car nearly stalls. I saw lambda 1.3-1.4 on my Techedge. I tried this on ...

Hey guys I just finished a first test drive with my new Z32 AFM (still stock injectors, 444 waiting to be installed) I used Operations -> Change MAF in Nistune and was surprised how well the car was idling and on light load. With O2 feedback disabled I saw very close values to 1:14.7 But later I fou...

Cool, can't wait to test it

Yes, this is what I thought.
You could analyze your logfiles and have AFR at the correct position, not 0.5-1 sec later.

Hi When playing with my new wideband I noticed a slight delay between measured AFR and fuel put into the engine (load point in the fuelmap) I think the reason is (obviously) that it takes time for the mixture to burn and pass exhaust valves and lambda sensor (which itself has a short delay) I think ...

Hello I did a long run with the new wideband connected and noticed that sometimes the values for injection time/duty cycle are odd. It can be clearly seen at 45 minutes 30 seconds that with full throttle from low revs upward duty cycle is 24% max, then at 2475 suddenly drops to 12%. AFR stays in rea...

Hehe

I'm planning to use this...
http://www.freescale.com/files/sensors/ ... PX5100.pdf

It's like 37 Euro in a local electronics shop

Couldn't you use a pressure compensated sensor?
One that uses ambient pressure as reference?

Christian

Hi

Any news on this? I'm also quite interested in one of those, but would like to also connect type k thermocouples to this unit and log in Nistune.

Would this be possible?

Thanks
Christian

Forget what I said. It seems to work. I'm a bit confused now... I did a reboot of the laptop and normally only send it sleeping. But that can't be it I think? On which diff is Nistune based? I suppose JDM, correct? Stock european S13 has 1:3.916 and I changed it to 1:3.692. What would be the correct...

I had a drive for several hours today with some very spirited driving - no knock at all in the logs.

I had knock monitor open for some of the time, but there was nothing on it either.

I'll observe this further and post the result.

Hm, strange. I entered 195/60/15 as OEM size and 215/45/17 as current size. I tried to change wheel inches to 18 and 20 in current size and I altered the tire to 215/65/17. Both did nothing. Rich S, I already did that, my speedo itself is spot on. It's the Nistune printout I want to calibrate. Thank...

Hi I have installed the diff off a S14 into my S13 to have longer gearing. Is there a way to adjust speed in Nistune? Consult vehicle display shows 135 km/h when I'm driving 148 (tested with GPS). I have tried tyre size speed correction in configuration, but that doesn't change anything. I'm on vers...