I did not get the memo... They make more money off summer gas than they do winter so there might be an incentive to switch if they’re good at managing their business.This year due to Covid and people not driving, the EPA sent out a memo allowing winter blend to be sold longer than usual since there was a surplus of it. But being well into June they should have switched over by now.
I went to the 3 nearest shops that advertised carrying race fuel but none of them had any since tracks have been closed. Reflashed my own tune before heading out and short term fuel trims looked much more stable, though AFR would still get up to +\- .50 of command. KR didn't show up other than a brief moment after letting off the throttle or a quick jab of throttle. I'm more concerned with the AFR than I am KR. I'll just have to keep an eye on it I guess
Cylinder 1 seems to be the most sensitive for me. I picked up some Dykem to hopefully figure out what is making the noise.It's not actual knock, KR just pulls ignition timing to prevent actual knock. The knock sensor is super sensitive and my car is pretty loud and bassy so it picks up random crap. Cylinder 3 and 4 are the most sensitive it seems.
I haven't seen it in person yet. In the manual, it looks like its on the intake side of the block in the middle of cylinder 3 and 4, which would explain what you're seeing.I don't really pay attention to DIFP command since at WOT it's always 2900 or whatever the max is.
Cylinder 3-4 are closest to the throttle body so that's my only guess as to why KR seems more likely to show up there.
Any idea where the actual knock sensor is?
What's your meth setup?made the switch,never made over 345whp,370wtq sae on 91oct,hvi,dp,fp,fmic,charge pipe,meth stock exhaust
now 365whp/385wtq sae same bolton on hondata and wow the car feel more stronger,spool faster!!
no regrats and the traction control!!
thanks to precisionautocanada
Not to long after replying to you it happened to me too. My winter tune was running perfect until it heated up. Even after street tuning my car I get this behavior randomly. I already discarded one gas station. I have 3 more to try.Direct quote from Hondata on their forums
I don't know if this is due to gas stations still carrying winter blend due to covid, but i've noticed my AFR and short term fuel trims have been caddy wompus in 4th gear and above lately
I even uploaded a basemap and got the same result.
I haven't changed anything inside the engine bay since early January. Looking at logs from earlier to mid May fueling looked fine.
When I ran the basemap today I would get a ton of knock retard 5k rpm and up from 4-6 on all cylinders. Previously on my own tune I had increased the knock sensitivity values by a large margin 5k RPM and up and reduced the knock step to -.75 from -2.25. Seems to me fuel quality is still crap. This is all on a 93 dp\ic tune. There isn't really anywhere around me to get some 100 octane to try and mix in the tank to see if it prevents this. Not quite sure what to do other than wait for fuel to switch to the summer blend. Any idea, @Hondata
|Thread starter||Similar threads||Forum||Replies||Date|
|Guidance/ Tips on Ignition Timing Tuning in Hondata Flashpro for Civic 1.5T||Hondata FlashPro Discussions||5|
|CTR FlashPro fuel pump duty limit||Civic Type R Forum (FK8 - 10th Gen)||10|
|CTR FlashPro tuning - rev hang||Type R: Engine | Exhaust | Bolt-On | Drivetrain||24|
|CTR FlashPro tuning - dyno||Type R: Engine | Exhaust | Bolt-On | Drivetrain||5|
|CTR FlashPro tuning - fuel pump||Type R: Engine | Exhaust | Bolt-On | Drivetrain||43|