02-25-2022, 05:00 PM | #1 |
Private First Class
36
Rep 140
Posts |
"wub wub wub" oscillation engine noise when at 2k RPM partial load
Hey guys, need some log help. I noticed that my car started doing this high load oscillation today that I can hear when I'm part throttle around 2k RPM. It kind of sounds like a "wub wub wub wub" until it gets past like 2.3k RPM and then it stops. I have 0 clue what could be causing it, but I logged it and saw my RPM, AFR, Timing, and Boost Target oscillating up and down while this was happening.
Car seems fine at WOT. Mods: FBO Stage 2 (catless DP, ER CP, intercooler, NGK plugs gapped to 0.020) Nostrum Stage 1 injectors Spool Stage 3 LPFP Dorch Stage 2 HPFP Anybody have any ideas what this could be? Log (you should be able to see it happening in 6th gear right after I let off the throttle and get back on): https://www.bootmod3.net/log?id=6219...729b6b74b51cbb |
02-26-2022, 07:46 AM | #3 |
Private First Class
36
Rep 140
Posts |
|
Appreciate
0
|
02-27-2022, 10:47 AM | #5 | |
Private First Class
36
Rep 140
Posts |
Quote:
I'm also replacing both VANOS solenoids just in case it's that |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|