# Tune checkup timing adjustment **URL:** \ **Category:** EMU BLACK / CLASSIC\ **Created:** [June 20, 2025, 7:47am UTC](https://community.ecumaster.com/t/tune-checkup-timing-adjustment/3905 "2025-06-20T07:47:21Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Kay](https://avatars.discourse-cdn.com/v4/letter/k/ed655f/32.png) [@Kay](https://community.ecumaster.com/u/Kay)\ **Post date:** [June 20, 2025, 7:47am UTC](https://community.ecumaster.com/t/tune-checkup-timing-adjustment/3905/1 "2025-06-20T07:47:21Z")
i was wondering if anyone could just take a quick look at the tune and log. to make sure evrything is kinda correct. still tweaking alot of settings but iam getting there the problem that iam having is that my boost is creeping and when switching over to next gear its kinda dead but than it does kinda stay at the boost lvl where i put it to and is my knock sensor settings correct? ive added 2 logs 1 i where i changed the timing and i got 0.3bar more pressure at 4k rpm so it seems like it helped and the other log is 2 days older but more pulls so more information. one thing i do find weird is that my rpm isint super steady? when going up in rpm sometimes it drops first looking at the log this does not happen on the cluster engine is a honda d16z6 with COP and cam sensors [more timing.emub](https://community.ecumaster.com/uploads/short-url/3RFSyR7UFfrZwdpS5OWXBs2oXzD.emub) (145.7 KB) [older log.emublog](https://community.ecumaster.com/uploads/short-url/kyAioAHazmnDDZXSS5usrUtyS0l.emublog) (2.1 MB) [quick pull.emublog](https://community.ecumaster.com/uploads/short-url/pTgKAecVLVAytNU0vHV9tAfSLW0.emublog) (426.5 KB) ---
**Author:** ![bruce\_lee](https://avatars.discourse-cdn.com/v4/letter/b/c5a1d2/32.png) [@bruce\_lee](https://community.ecumaster.com/u/bruce_lee)\ **Post date:** [June 23, 2025, 11:16am UTC](https://community.ecumaster.com/t/tune-checkup-timing-adjustment/3905/2 "2025-06-23T11:16:57Z")
![EMU_BLACK_qrXyfeUOrr](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/1/1fe15d07327b878e4b0ff9decbf45b81ab637d13.png) I noticed on my B18 engine that I’m losing ignition timing as the RPMs go up, so I added a correction to advance the timing. Lock the ignition timing and use a timing light to check if the timing drifts as the RPM increases. ---
**Author:** ![Kay](https://avatars.discourse-cdn.com/v4/letter/k/ed655f/32.png) [@Kay](https://community.ecumaster.com/u/Kay)\ **Post date:** [June 23, 2025, 1:19pm UTC](https://community.ecumaster.com/t/tune-checkup-timing-adjustment/3905/3 "2025-06-23T13:19:04Z")
Alright thanks il look into this ---
**Author:** ![Kay](https://avatars.discourse-cdn.com/v4/letter/k/ed655f/32.png) [@Kay](https://community.ecumaster.com/u/Kay)\ **Post date:** [June 24, 2025, 10:14am UTC](https://community.ecumaster.com/t/tune-checkup-timing-adjustment/3905/4 "2025-06-24T10:14:46Z")
So I fixed the rpm problem it was my honed trigger kit Wich hade a little play in it. Now I fixed that and timed the ignition again and I hade to change the ignition by 12° and that changed alot I hade to change my whole ignition map. And now the only real issue is that at idle it like misfires. Keeps giving like a buh buh sound. Gonna keep trying and hopefully I can fix that issue but for the rest it drives amazing fixed the slower throttle input and response. And now it follows the ignition map so it pulls way harder. ---
**Author:** ![bruce\_lee](https://avatars.discourse-cdn.com/v4/letter/b/c5a1d2/32.png) [@bruce\_lee](https://community.ecumaster.com/u/bruce_lee)\ **Post date:** [June 24, 2025, 10:56am UTC](https://community.ecumaster.com/t/tune-checkup-timing-adjustment/3905/5 "2025-06-24T10:56:30Z")
Regarding the issue with the engine idle, in my experience it could be valve lash clearance or a poor spray pattern from the injectors. ---
**Author:** ![Kay](https://avatars.discourse-cdn.com/v4/letter/k/ed655f/32.png) [@Kay](https://community.ecumaster.com/u/Kay)\ **Post date:** [June 24, 2025, 11:18am UTC](https://community.ecumaster.com/t/tune-checkup-timing-adjustment/3905/6 "2025-06-24T11:18:12Z")
This just started after doing the new 12 degrees of timing difference