Nistune Forums

I ask this question because since i've used nistune, the VLRB30plusT wants to stall everytime you blip the throttle at idle or even when cruising and is a really tricky to keep running when you brake suddenly. I can be cruising at any rev or gear at 12-13-14 AFrs then just start to back off and the ...

yes I'm sure it is working because it does actually adjust the Blue area but I don't see the O2 read out in Nistune though. thats whats got me bugged. in the gauges theres is nothing to see it sits there dead not swing either way or on the dashboard display nothing is visible in the bar graph either.

OK, after much deliberation, blood, sweat and cursing, the wiring is good, the O2 sensor is good and still on feedback display in Nistune -latest beta.

I do however see that the ECU is trying frantically to adjust Afr's in the Blue ball park when ever it can. Weird.

Any ideas?

Thanks Matt. One less problem to look for.

hi,
I've read the manual over an over and evened resorted to Googleland to get answers, but I just can't get enough info to explain what Fuel Cut and Fuel Recover Maps do. If I need to reduce fuel earlier during deceleration which one gets changed and which direction?


Any thoughts?

After much reading the manual it appears apparent that I have removed the LEGACY_AFM_OFF_SET=1500 from my original ADR file, and also reloaded the Nistune with stock VLNA maps after doing a Nistune Beta Update. I think this would have reset something. Do I need to tell the ECU I have a Z32AFM again ...

Hi, Just wondering what that average MAF voltage is at idle. We have a type 1 (rev3 board) Nistune board in VL RB30NA ECU. this one reads around 1.5volts and hits around the 4.6v at 6400rpm under around 15psi. The ET's indicate about we are making about 270HP and I figure if I only have about 0.4 to...

Hi Mat, I have some more logs, this time with the wideband LC-1 connected whilst terrorising the local neighbours. It may add another dimension. It frightens me to see excessively rich low to mid the some scary lean conditions in the higher rev ranges. Some even larger MAF anomilies If you get a cha...

my bad!!

Just incase it was a PC logging glitch I ran the last 2 logs in stream mode instead of Consult. (dunno if that is visible or if the capture bitrate increases) Then I noticed that the TP hit roof when the afm registered 5volts on occasion. That indicates that to me that the ECU has actually registere...

Thanks for confirming I haven't missed something in the App config as I'm still getting familiar with it. I'll start looking for electrical probs, I know that if I clear the 02 feedback tick box it stops missing when it's idling, so until i get a meter on to it that will do. btw, for our first night...

Interesting that you say that Matt, the VL I've been playing with is hopefully about to break into the 12s tomorrow night at WSID if all goes well and it hasn't had a speed sensor since we installed Nistune as we run a Fully modified Trimatic transmission. I also don't see any speed sensor DTC's wit...

Thanks Matt, but I replaced it a few weeks ago after a secondhand one made no difference either. Rotten things cost $160 at Bursons and it didn't solve the issue. I might ohm out the wiring but as the idle AFR's change when I flick the 02 feedback flag on/off, I though there may be another reason wh...

no matter whether the 02 sensor feedback is on or off, I don't seem to see it's output voltage displayed in Nistune gauges. the gauge stays on 0. I do notice that when the 02 feedback is ticked on/off that the idle afr's start to change. Am Imissing something here ? I'm running the latest beta Nistu...