ECMlink 4 counts of knock at 6,000rpm

[jayman089]

Hey guys I just recently installed an eprom ecu with DSMlink v2 in a buddies 96 and begun to tune. I'm using the v3 ECMlink software to tune with my laptop.

Should I be worried about 4 counts of knock at 6,000rpm I got during a 3rd gear pull? I figured I should pull a degree or two at 6,000rpm to try and get rid of the knock? I've attached part of the log for you guys to see. During every other pull I got no more than about 1.8 counts of knock.

I have a few other logs as well if that would help at all.

Thanks!

 

[gofer]

Your not logging a WB so we're blind to what your AFR's look like but your front o2 voltage doesn't look lean. It looks like your running 12psi on the t25 and you haven't touched your fuel/timing sliders so its the stock fuel map. I wouldn't be worried about it if it knocked ONE pull out of 3 like that, probably just picked up phantom knock.

 

[jayman089]

Your not logging a WB so we're blind to what your AFR's look like but your front o2 voltage doesn't look lean. It looks like your running 12psi on the t25 and you haven't touched your fuel/timing sliders so its the stock fuel map. I wouldn't be worried about it if it knocked ONE pull out of 3 like that, probably just picked up phantom knock.

At the moment I only have an Autometer narrowband, however my next purchase will be a wideband once I get my taxes back. My boost gauge reads about 14-15psi on the stock t25.

It was only that one pull where it picked up 4 counts of knock. The other 2-3 pulls only showed maybe 2 counts of knock.

After the pulls, my combinedft was around 12% so I added to the deadtime to get it down to around +- 1%

Should I do another few pulls to look for knock again or just not worry about it?

 

[gofer]

To be honest with you I think your just beating on your car for no reason until you get that wideband. My guess is that its actually RICH knock but without the WB you can't be too sure.
While your waiting on your WB money have you gotten your fuel pump rewired? It seems like your getting ready to start throwing down some power so while your bored and wanting to work on your car do a fp rewire. The writeups on vfaq & the tech articles here are great but leave a mess of wires and stuff. I can send you pictures/install of my rewire if you just shoot me a PM so you can get a clean rewire if you don't already have one.
Just sit on the tune for now, you can play with your MAFcomp sliders to get BoostEst close, heres a good write up. DSMlink MAS/MAF Calibration Page

 

[ToughTalon]

So I have the older DSM link, not use to the new one, how do I see his fuel and timing sliders?

 

[housegsx]

So I have the older DSM link, not use to the new one, how do I see his fuel and timing sliders?

Download V3

 

[snowborder714]

My guess is that's not phantom knock. An easy way to test is just drop all timing sliders down by 2* and see what happens. Or another way is to lower the boost by a few psi as that'll probably get rid of the knock.