Nistune Forums

Problems : Using AEM default analog output voltage vs AFR chart data, on DLP-IO8 to nistune, the AFR on nistune is around 0.5 point off to the gauge display. I have tried set up a new CSV to match the display, it only works for a while, turn off the car and restart later, my new CSV to nistune is 3 ...

V1.3.1 How to set widrband display to AFR instead of lambda , innovate MTS , it used to be showing AFR .

As title, V1.3 No O2 voltage report under the bar,. Standard ENT S13 50F00 Standard ENT S14 69F00 No K value window pop up Standard ENT S13 50F00 Didn't try on S14 ecu Error message Something like raise the rev limiter , show up when tip in the throrttle only Standard ENT S13 50F00 Others ecu not tr...

Hi Matt,

Try the 1.3 today, found that in the display consult gauge , the O2 voltage bar is black out.
JDM S14 69F00 ECU with standard ent.

Louis

Although I'm still using factory 370cc injecors on my own car, But all of my customer's SR, usually change to 740cc injectors, it works fine on both S13 SR20DET early model and late model. Same method also works fine on CA18DET engine control with S14 early model ECU + GTR35 injectors. It sounds goo...

Here is my own S14 Zenki throttle enrichment, hear the difference between S14 and S15 factory tune on same engine same cat back. 100% factory tune untouch , fully warm up (Hear the popping ?? please note that still using DET smaller throttle boby) https://youtu.be/W-vjfMNx7ZY S14 JDM Zenki ECU with ...

In the Throttle Enrichment, If target tune is for S14 ECU. Only 4 maps need to adjust. Copy the following maps data from S15 91F08 ecu Async MAF Factor Decel Loss MAF Scale down the following maps by injector size Async TPS Factor Async TPS Cut Factor Example for Async TPS Factor S15 91F08 ECU 107 8...

Your vented BOV causing idle recovery problem.
ditch it and change to recirculate type BOV, idle recovery problem sloved.

I'm 100% sure it is throttle enrichment not tuning right with the 740cc injectors. I used to have same issue with 740cc, but now, I know how to tune right. Please note that I'm using standard ENT files, not Feature Pack base. Here is the result, transplant some of the maps from S15 91F08 ECU , scale...

most of my tuned CA18 do the same, when let off throttle, not just R35 550cc injectos, AFR runs into rich to around 13s before going to 22, R32 444cc do the same thing, no matter how I try different setting, the off throttle fuel cut always delay a hair, what I thought is the injected fuel on the ru...

what injector latency on your setting , me and my customers are running the same injectors, usually 850ms works fine.

Formatted harddisk and install nistune, both 1.2.51 and 1.2.56 cannot start up.
Window error or nistune error ?

Fonts size scaling error on the Temp Enrich ?

That is a common problem on CA18DET The ECU mainboard between 44FXX and 39FXX is different, 44FXX ECU is non Anti Pollution ECU, does not have 02 control (does not produce 0.32V 02 signal), it require 4 pin AFM. 39FXX ECU is Anti Pollution ECU, it has 02 control, require 3 pin AFM, it will produce a...

Now, after small adjustment on the latency, car idle fine no matter front light and / or A/C on.
Confirmed that AFM signal ground is connected to sensor ground within the ecu.