Info Required Bump start doesn't work
- Thread starter Leo Black
- Start date
Further information and reports are needed to assist development with a fix
davehenrie
Well-known member
turn up your sound, you should be able to reach the outside lane and get established before the ICE kicks in. I can only surmise that perhaps battery levels may impact that....if your about to run out of nrg as you enter your pitstall, perhaps the ICE has to kick in sooner upon leaving to give the battery a chance to stabalize. (jusssst, like most of my thoughts, an unsupported guess)
Sound is turned up, car is all fresh after just entering a Race Weekend, and I can not reach the outside lane and get a bump start as I could before the update. I turn on ignition, put 1st gear in and push throttle, and instead of going silent on battery for a while, the engine is on right away but not in idle as it would be if the clutch was down, instead the engine is going from 1 rpm to whatever it is when i reach the pit lane speed.
Am I being an idiot and missing something here? It was not like this before the update.
davehenrie
Well-known member
OK, that leads to the next question. Does this happen when you use a clutch or just when you go right to first and stomp on the throttle?
I’ll try and check when I get home, if no one else does first.
davehenrie
Well-known member
Just tried the Caddy & the Porsche @ Sebring. Both made raucous ICE noise while in N before leaving the garage. Then some more ICE noise as it got underway. Then pretty much silent until the PSL was disengaged. Almost like the sounds got swapped. the Electric sound while trundling down the garage access & pit lane while the V8 sounds while the car was stationary or just underway.
davehenrie
Well-known member
Thanks for giving it a once over. I'll just ask, were you testing at Sebring? This is where both of us have had the problem. I'll try tomorrow to test other circuits.
I was at Le Mans, but I can give Sebring a go too
davehenrie
Well-known member
Here is a video that shows what we are seeing/hearing. In the garage, Power is turned on, then, while still in neutral, I pressed the throttle and the engine roars. As motion begins you can hear the electric kick in...but then it alternates between the ICE sounds and the battery, seemingly dependent upon either speed or throttle application.
Thank you davehenrie, it's what happening to me too. I could replicate this strange behavior by while in garage;
Example 1:
1: turn ignition on
2: put in first gear
3: throttle
= no bump start
Example 2:
1: turn ignition on
2: put in first gear
3: press START
4: throttle
= bump start!
This works for a few times, if you drive a lap and try to replicate by doing example 2, then bump start will not work.
Also; why is engine starting when standing still, I have ignition on, have neutral gear and push throttle?
I verified steam files and had all files successfully validated.
Example 1:
1: turn ignition on
2: put in first gear
3: throttle
= no bump start
Example 2:
1: turn ignition on
2: put in first gear
3: press START
4: throttle
= bump start!
This works for a few times, if you drive a lap and try to replicate by doing example 2, then bump start will not work.
Also; why is engine starting when standing still, I have ignition on, have neutral gear and push throttle?
I verified steam files and had all files successfully validated.
I made two videos, first one is when I turn ignition, 1st gear and throttle. Bump start don't work.
Second video and first two attempts is when i also press my start button, then bump start suddenly works. 3rd and 4th attempts is where i turn ignition on, have it in neutral and push throttle = engine starts. I hope this helps some to solve the problem. Maybe it has something to do with the throttle all in all.
It's not track bound, same thing happens on any track. I also tested with the Porsche and Lamborghini, same results.
Second video and first two attempts is when i also press my start button, then bump start suddenly works. 3rd and 4th attempts is where i turn ignition on, have it in neutral and push throttle = engine starts. I hope this helps some to solve the problem. Maybe it has something to do with the throttle all in all.
It's not track bound, same thing happens on any track. I also tested with the Porsche and Lamborghini, same results.
davehenrie
Well-known member
Seems to work normally as long as you DON'T press the throttle before engaging 1st. Without the engine brake torque to hold back the ICE it spins right up past the battery/ICE hand-off. It also does seem to be missing the BANG when the ICE starts. When I loaded a saved race from prior to the Update, the car seemed to function correctly. Left the pits under battery and swiftly changed over to ICE. (same car actually)
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I haven’t been able to reproduce this with any combination/order of throttle/gears, nor having auto-start disabled or not. So it’s a weird one.
The only main control I haven’t touched is clutch…
And it seems not many has this issue, it could be something at our end. I will do a re-install and get back. As soon Daytona 24 is over
davehenrie
Well-known member
Back when rF2 changed over to the new sound engine, I would occasionally experience static/corruption from the audio. So I changed out my Corsair headset for a Razor Headset with a built in soundcard. That cured all the sound issues with rF2(sounded glorious) and continued to LMU.
I have, for the last few months, been using the onboard AMD sound. (so I could hear the Missus) Another thread about sound got me thinking perhaps the issue was with the onboard sound. So I changed back to my headset and went back to test, with the 2024 WEC Alpine. Still the same issue...if you rev the throttle while in neutral while still in the garage, the ICE sounds take over. Heading down the garage paddock the electric motor comes on but the ICE on the pit limiter sounds strangely muted and ONLY on the left ear. No BANG as the ICE took over. Once outside the pits, the ICE came on full bore and seemed to work as intended. Stereo was mixed properly when running over curbs or when another car passed by.
So changing sound options in Windows 11 didn't fix anything.(I did exit LMU and gave LMU a fresh start after swapping to the headphones) Still have, however, the ICE taking over when revved and stationary and then an improper sounding mix while on the Pit Limiter.
I have, for the last few months, been using the onboard AMD sound. (so I could hear the Missus) Another thread about sound got me thinking perhaps the issue was with the onboard sound. So I changed back to my headset and went back to test, with the 2024 WEC Alpine. Still the same issue...if you rev the throttle while in neutral while still in the garage, the ICE sounds take over. Heading down the garage paddock the electric motor comes on but the ICE on the pit limiter sounds strangely muted and ONLY on the left ear. No BANG as the ICE took over. Once outside the pits, the ICE came on full bore and seemed to work as intended. Stereo was mixed properly when running over curbs or when another car passed by.
So changing sound options in Windows 11 didn't fix anything.(I did exit LMU and gave LMU a fresh start after swapping to the headphones) Still have, however, the ICE taking over when revved and stationary and then an improper sounding mix while on the Pit Limiter.
I reinstalled it from Steam with no luck. Then I deleted LMU from windows control panel and removed the remaining folders, installed a fresh copy with fresh json files and default settings in game and still no luck, issue is still there; Bump start ONLY work IF i press the start button first. Only then it pulls away with the electric motors for a later real bump start, otherwise it pulls away with engine in 1st gear and no bump start. So i'm completely lost.
It's not the whole world for me, I still play LMU a lot! But it's a little annoying just.
It's not the whole world for me, I still play LMU a lot! But it's a little annoying just.
davehenrie
Well-known member
slightly longer video, begin normally by NOT touching the throttle until the car is placed in first gear with the clutch pedal depressed. Clear engine idle sound, everything as intended. Then at the pitbox area, I stopped, placed the car in Neutral and depressed the throttle....the ICE immediately activated.
As @Leo Black states, this is not a deal breaker. Just hoping it is not the precursor to other audio issues. Audio is set to 256. I changed from headset to speaker in LMU, with now try Auto.
As @Leo Black states, this is not a deal breaker. Just hoping it is not the precursor to other audio issues. Audio is set to 256. I changed from headset to speaker in LMU, with now try Auto.
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@davehenrie , I don't think it's an audio issue. Look in my second video where bump actually works, the car clearly jumps a bit when engine is activated. Compare it to the first video where caddy slowly pulls away with engine on and in 1st gear. It's for me something else than just audio. In RL driving away with engine on, 1st gear in and dropped clutch its highly unrealistic with any combustion engine.