Nistune Forums

observing the Alpha fuel learn during warm up (Open loop 02) the Alpha fuel learn's sit at 100% and 128%. I am assuming that during closed loop light load my fuel trims sitting at 90% and 119% (average) the short term and long term fuel trims are removing fuel and singalling to go lean. My high load...

Anyone!?

Hi Romchip.

How have you been able to access that source code? Did you manage to succesfully edit the AFR conditions.

I have an SR20det and i would be very interested in changing the MAX TP at which closed loop operation happens.

Thanks

Hi All, Right im trying to use the alpha fuel learn to validate and adjust where appropriate the K constant. So I have a SR20DET, 555's nismos, z32 Maf, GT2860 disco potatoe, 3" manifold, elbow and exhaust. So im looking at the fuel learns in the consult gauges. Just want to be clear I'm interu...

with the file this time

Hi Matt,

Thanks for the reply. This is really stressing me out now! I installed nistune on another PC to see if the issue could be resolved. No Joy

I took a log last night but im not sure i did it correctly....the de-bug log is huge....

here goes...File attached

Hi all, Just installed the new version of nistune and also installed a map sensor MPX4250gp to monior my boost through the dlp. I have been successfully using it to log AFR ratios. However now when i connect the DLP connects for a brief second then drops out. Im not sure if this is related to nistun...

Hi all, Just installed the new version of nistune and also installed a map sensor MPX4250gp to monior my boost through the dlp. I have been successfully using it to log AFR ratios. However now when i connect the DLP connects for a brief second then drops out. Im not sure if this is related to nistun...

Hi all, I have this exact same problem. Its really anouying. I cant use high load at low RPM. Ie under 3500 ish. The car just holds onto closed loop. The more confusing this is i have 02 sensor disabled in nistune and the 02 of in all the cells. Seems to make no difference. For some reason the 02 se...

Hi All, Right I have nistune up and running. I have just purchased an 8 Channel USB data acquisition board. This will enable me to data log 8 extra channel. I'm going to be using it for my AEM wideband 0-5v output (As logging it via serial is proving very temperamental....) I always want to log boos...

Hi Guys, Where can you look at the Short term and long term fuel trim/ Or AF learn as it seems to be called? I've been wondering if I can use the long term fuel trim to validate my K constant. But what iv'e just read above suggest that the target AFR's in the table is not the only thing effecting cl...

Hi all, I can see some people have downloaded the bin file. Any comments? The Scaling and k constant came with the bin file that Pete sent to me. However i notice if i change injectors and then maf on the base tune using the automatic re-scale methods i get a totally different scale and a a k consta...

Hi guys, Not posted on the forum yet. Usual bit about me!! From UK. Love cars. Love Road wars (a TV program for those oversea's members! :wink: ) work at Ford, in product development centre on...diesel engines :| Ive been researching on this forum and others for quite some time now. This forum is re...