So I'm having a really weird issue with my DC5 with stock K20A2 I/H/E and Kpro ECU and I need help from some Hondata gurus. I recorded datalogs of two fourth gear pulls, and it seems like at some random RPM (7400 RPM in first file and 8600 in second datalog) the ECU ******' forgets what calibration it's running, because the AFR suddenly goes super rich (duty cycle spikes from 83% to 92%) and the ignition advances 2 more degrees than the ignition tables or the knock ignition limit tables command it to. This did NOT happen in second and third gear pulls I datalogged during the same night or previously when I dyno tuned the car and datalogged numerous times on the street. One of my friends said it might be the alternator going bad, so I checked the voltage and it goes from 14.0 v cruise to 13.7 v WOT. I don't know if that's normal or low or what the deal is. Any ideas or help is appreciated.

(I would attach the datalogs and calibration but apparently this website doesn't accept those file types).

 

Bump

 

No need to bump when your thread is at the top of the first page. This is a slow moving forum. Zip up your calibration and datalogs together and upload that as an attachment.

 

Got it, sorry I didn't realize it was at the top. Thank you to any one who spares their time to help me out. A member on k20a.org looked at them and told me it is likely the WOT comp (cat protect) tables that are making the duty cycle spike. This itself would be easy to fix, but it doesn't address the issue of the ignition also advancing. I tried searching on this site, k20a.org, CRSX, and Hondata's forum and help section for any info on this table but could not find anything. If any one knows more about this table or how to disable it (I have no cat so I don't need it nor know why it's randomly starting to take effect) I will appreciate any help or ideas I can get.