Nistune Forums

Once more, thank you for your input. I was just looking into the math bit to see how far off I could be with my K value. On boost AFRs are very accurate with my current map, and with some highway tests I'm close to getting my cruise and low boost afrs where I want them too. Also Idle is almost spot ...

Me with more nonsense, but please humor my math and logic behind it. http://www.rceng.com/technical.aspx http://www.deatschwerks.com/resources/fuel-calculators/flow-vs-pressure-calculator I went to this sites to validate the flow of my injectors with the new fuel pressure, and doing so gave me the f...

Hi Matt, thank you for looking at my comments. Right now the Kconstant is set at 349 (vs. 183 which is in the default bin). Notice I'm using Z32 MAF and 560cc evo8 injectors with fuel pressure set at 50psi (vs. 370cc injectors @ 36psi of fuel pressure). If you look at the 1st image on my previous po...

Thank you all very much for your input. I've learned a lot here, while also reading every single bit of information I could find on the internet. I was finally able to get the car to idle @14.7~afr. I'm also very happy with the way the car drives under WOT, even for a street tune. Set my cooper spar...

Hmmm, interesting. If it is just throttle enrichment, what do you think it would do if I set every value of the table to 0?

Check the attached log, by the last 10 seconds (12th minute mark), 2 blips, first one without pink cells at the last column, 2nd blip with pinks cells.

I have some doubts regarding the Alpha/N vs TPS table. The workshop training PDF recommends to max out this table for turbo cars, but if I do this the driveability seems affected on low rpm cruise. Whats is the best way to tweak this table? And not having the car using the last column on the fuel ma...

No, I didn't remove the AAC valve, just the air regulator below the throttle body. I have no idea if the ECU on my car was ever swapped by the previous owner. I bought the car in 2007, and he purchased it locally in 1993. I wouldn't even know where the O2 sensor is supposed to be on the wiring harne...

I found this really old thread which describes the exact idle issue that I'm having. It definitely points to being a MAF issue, since this started happening when I installed my Z32 MAF. http://ecu2.forumwise.com/ecu2-thread1724.html Even Louiswun commented in it back in 2007. :lol: I guess I have 7 ...

Another question, should I make Load and RPM scales the same? Fuel and Ign differ from each other, as they were like this in the stock setup, but I'm not sure what's recommended. Attached current bin and log with skipping problem.

Ok, been going at it for a couple of weeks now, but I just found a serious problem while data logging. Whenever I floor it Consult log will simply stop recording and skip several seconds in the Log. Car also sputters a bit when this happens, so I don't know if I'm asking too much from the ECU or wha...

Thank you very much for your comments. Very detailed. I will definitely look into moving the idle MAF mV value closer to 1120 and see how it affects idle AFRs. By tweaking AAC, TPS and Throttle body stop screw I might be able to achieve this. One question, why did you decide on having a 4 BAR base f...

I was using stock fuel Pressure, but the last tests have been done with 43psi (standard fuel pressure for evo injectors) but not much improvement. @43psi on cold start, 380 Kconst, Latency 430 it is fine for while until it gets up to temp. Afterwards, when it goes to close loop I guess, it starts ge...

:) I've tried. But I can't get it to affect the idle towards a leaner mixture at all by reducing the values in the TTPmin table. If I increase them I can see the AFRs getting richer at the higher values. I not really sure if I'm supposed to have the FTS value stucked at 0% and nothing registered on ...

yes, even with negative map values in the 16-17afrs it keeps correcting and enriching the mixture.

Thanks again for the pointers. Reduced the entire Ignition Timing Map (10° from stock) as you recommended and enabled O2 Feedback on the low portion cells similarly to the stock map. Can a leaky injector(s) be the cause of my rich idle? My lowest Injection time at idle is 1.74, usually averaging 2.2...