Nistune Forums

Sure I was trying it out to see how well it worked. I did find a target AFR map in the install and used this whether it is correct to be using this though?

Thanks I had looked at the Tomei 740s and they have a time lag setting of 0.66 so I thought it might be 660 but that seemed low. Will push up to 900 and see how that responds. My cruising AFR is looking good now and I’m idling around 12.4. Have started AFR auto tuning and getting some violent spikes...

Hey folks interested to hear what people have their injector latency set to for Nismo 740cc injectors? Wanting to copy for a base map as I’m currently set to 830.

I’ll sort the vac leak out and see how that changes the TIM. Do I need to touch the K at all or is it all done on TIM for injectors with the FP? Is the TIM affected by the intake though as I have a considerable more amount of air intake being on Ashspec massives, 2.5” pipework, 58mm TBs and the HKS ...

After reviewing the log for a run out and setting the feedback parameters I think I know what adjustments to make. Will adjust latency to 700 as should be around this for Nismo 740s so is reading. TIM I’ll drop to 540 due to my mixtures around the 2000 RPM mark. Going up the power curve is does seem...

Ok I’m back on with this. FPR changed to AEM unit and fuel pressure set to approx 44psi. Base idle set again as it was out and idle was erratic. O2 temp set to 145degrees TIM set to 550 at the moment as my cruising AFR was high teens 18/19 at 512. Latency set at 790. Idle AFR is at 11. My FTS is at ...

Thanks I’ll find that and run through it as I tried the Zed on the above map and it is far from happy. Not idling and stalling without even really running. I’ll tune back to the standard map, run through the other checks as I’ve got an AEM FPR to go on since I’m not convinced the FSE one I have is 1...

Latest developments as I should be avid to get the see out soon now that the weather is getting better. O2 feedback temp set at 150. K cont set at 144 TIM set at 256 Fuel map halved for the top end I assume I don’t need to touch the figures over the 160 mark? Next I’ll set the flags as I had this se...

Ok I will halve the fuel map and flatten out the top on it. Once I get out for a run in good weather I can adjust the K to hit the 14.7:1. Also I have O2 sensors removed so I guess I need to disable O2 feedback. I’ve loosely read through the process for this and toggling it in the fuel map I think. ...

Hi Matt. To update on this my board now has the feature pack installed. I’ve downloaded the map from the ECU and looking to adjust that now. I have set Kconst at 144 and halved both TP min and max load. Fuel map has been flattened by half at top in just wondering if I then need to carry that on down...

Excellent thanks Matt. My board is a Rev 3 so didn’t need the power wire connecting. I’ve uploaded 31P0F onto it now. Having been speaking with CZP Nick said this is the one he uses as well so Is this just feature pack V1 upgrades as I don’t think I need the v2 elements? I’ll be looking to get it ba...

Hey Matt so I’ve received the programmer board now seems it’s been updated since the last PDF instructions was sent out therefore I assume the board fits this was around and you still have to solder their J1 and PGM points together?

I’ve gone ahead and ordered a base image programmer board. I’m struggling to find any tuner in the UK that has one therefore weighing up the cost vs shipping my ECU overseas to be down is much better plus any future updates I’ll be able to do myself. I’ll jump back on with further questions Matt onc...

Ah ok problem with that is I’m in the UK and that are in the US. I wouldn’t want to have to send it back to them every time it needed an update. Is this something I can do myself therefore?

Ok can I update this board then? It was ordered from CZP when I bought it.