Hey guys,,, got a ?..

Im gettin KR in 2nd gear but not 1st..... im thinkin its my 00 pcm.. but my friends 04 gets KR also in 2nd but not 1st.. but he is running 87oct , im running 93oct...

Any suggestions.. or tips?

 

Main test would be to take that timing out and see if it stays there, then if your fueling is all correct I would say its false knock. You could also try adding some race gas and see if the KR stays.

Chris

 

Mind posting up a log file showing this?

 

notice your efi live, how much have you screwed with timing? ve tuning? pe?

 

it's my timing tables he's running. i never see kr. i'm thinking it's false but we'll see.

 

Makes sense to me, the load on the engine is higher in 2nd.

 

I see more KR in 2nd than anywhere else.

 

Back in the days I wasn't running 2 bar I'd see all my kr right after 1>2 shift, due to the engine leaning out slightly.

 

Relatively speaking there's hardly any load on the engine in 1st gear compared to 2nd gear...if you're only seeing KR in 2nd I'd lean towards believing it's actually real (false KR tends to show up in all gears)

 

Hey guys, a long time ago Flyer told me to change the knock fast attack setting to .75 to stop the long drag on of knock. I didn't realize then how helpful it would be in diagnosing real/false knock but it works pretty good. If it's real knock, it will look real choppy onthe "graph chart". Instead fo quick blip. Granted the quick blips can still be real, but you won't get held down when there isn't knock with this setting. Like Yelo says, false tends to show up in the same places in all gears.

Just a helpful note. I hate looking at that graph and seeing 2* of kr then it taper down for the next 2 to 3 seconds.