rossoner
Newbie
Karma: +0/-0
 Offline
Posts: 6
|
 |
« Reply #2505 on: March 07, 2024, 09:01:54 AM »
|
|
|
TEMIN is for TE not TI. TI = TE + TVUB.
TVUB for 980cc is around 1ms at 14V.
If TEMIN is 0.68 they are running on the limit and it should be reduced. The minimum TI is 1.68ms in that case.
If idle is set a little higher then it will be rich. Or if TVUB is set a little higher.
Thank you for the replies and information! The car was tested for air leaks. My tvub is 1.15 at 14v, so I will try to set it to 1. |
|
|
|
|
Logged
|
|
|
|
keichi
Full Member
Karma: +11/-2
Offline
Posts: 105
|
|
« Reply #2506 on: March 07, 2024, 09:02:51 AM »
|
|
|
TEMIN is for TE not TI. TI = TE + TVUB.
TVUB for 980cc is around 1ms at 14V.
If TEMIN is 0.68 they are running on the limit and it should be reduced. The minimum TI is 1.68ms in that case.
If idle is set a little higher then it will be rich. Or if TVUB is set a little higher.
He didn't say if his 0,68ms is TE or TI  I assume TE 0,68ms TE should be perfectly fine for those injectors to keep 1,0lambda at idle. Unless he messed up with TVUB or has some hardware issue My tvub is 1.15 at 14v, so I will try to set it to 1.
I set 0,9 at 14V for 980cc Raising idle to 820 or more is also good idea. |
|
|
|
« Last Edit: March 07, 2024, 09:10:18 AM by keichi »
|
Logged
|
|
|
|
|
prj
|
|
« Reply #2507 on: March 07, 2024, 09:17:25 AM »
|
|
|
He didn't say if his 0,68ms is TE or TI I assume TE 0,68ms TE should be perfectly fine for those injectors to keep 1,0lambda at idle. Unless he messed up with TVUB or has some hardware issue I set 0,9 at 14V for 980cc Raising idle to 820 or more is also good idea. No, you clearly assumed that TEMIN is a limit for TI, because you gave TI as example, when in reality it limits TE. Then you edited post afterwards. If he says it's too rich, then clearly it is not an air leak on idle, that would make it lean if anything. If his TEMIN is 0.68ms then it's simply too high for these injectors. Also, raising idle decreases TE and TI even further! So your "bla bla" about never needing to touch it is simply incorrect. It should be reduced to 0.5 or 0.4 for these injectors. |
|
|
|
|
Logged
|
|
|
|
|
prj
|
|
« Reply #2508 on: March 07, 2024, 09:23:36 AM »
|
|
|
Thank you for the replies and information! The car was tested for air leaks.
My tvub is 1.15 at 14v, so I will try to set it to 1.
TEMIN is @ 0x16558. Stock value 0.7008 TEMINVA is @ 0x1655A. Stock value 0.4 I usually set both to 0.3 with these injectors... |
|
|
|
|
Logged
|
|
|
|
keichi
Full Member
Karma: +11/-2
Offline
Posts: 105
|
|
« Reply #2509 on: March 07, 2024, 09:44:42 AM »
|
|
|
No, you clearly assumed that TEMIN is a limit for TI, because you gave TI as example, when in reality it limits TE.
Then you edited post afterwards.
If he says it's too rich, then clearly it is not an air leak on idle, that would make it lean if anything.
If his TEMIN is 0.68ms then it's simply too high for these injectors.
Also, raising idle decreases TE and TI even further!
So your "bla bla" about never needing to touch it is simply incorrect.
It should be reduced to 0.5 or 0.4 for these injectors.
I just said what works for me. Don't want to argue but you said previously that at 0,65ms TE those injectors are already below their healthy limit. Now you suggest to lower it even more  but maybe i just didn't understand something And on idle airleak of course would cause leaning (fuel trims would go up) - my mistake |
|
|
|
« Last Edit: March 07, 2024, 09:49:15 AM by keichi »
|
Logged
|
|
|
|
|
prj
|
|
« Reply #2510 on: March 07, 2024, 09:45:54 AM »
|
|
|
I just said what works for me. Don't want to argue but you said previously that at 0,65ms TE those injectors are already below their healthy limit. Now you suggest to lower it even more but maybe i just didn't understand something No, I never said that. Also there is no "healthy limit" for the injectors. The TEMIN that manufacturer gives is the value below which they can be a little unpredictable. I never had any problems with these injectors with 0.3 TEMIN value though. Also, maybe there are different TEMIN values on different rom's but if your idle TI is at 1.7 and TEMIN is at 0.7 then at fast idle it will always be too rich (e.g. 3000 rpm). Over here where they test sniffer emissions that is an instant emissions fail. The car is not road legal anymore. Anyway I gave the OP the cal label locations, so problem solved. |
|
|
|
« Last Edit: March 07, 2024, 09:47:51 AM by prj »
|
Logged
|
|
|
|
rossoner
Newbie
Karma: +0/-0
Offline
Posts: 6
|
|
« Reply #2511 on: March 07, 2024, 09:49:47 AM »
|
|
|
No, I never said that.
Also there is no "healthy limit" for the injectors. The TEMIN that manufacturer gives is the value below which they can be a little unpredictable.
I never had any problems with these injectors with 0.3 TEMIN value though.
Also, maybe there are different TEMIN values on different rom's but if your idle TI is at 1.7 and TEMIN is at 0.7 then at fast idle it will always be too rich (e.g. 3000 rpm).
Over here where they test sniffer emissions that is an instant emissions fail. The car is not road legal anymore.
Anyway I gave the OP the cal label locations, so problem solved.
Thanks a lot! |
|
|
|
|
Logged
|
|
|
|
|
s60rawr
|
|
« Reply #2512 on: March 08, 2024, 02:36:54 PM »
|
|
|
My volvo is running rich on idle with bosch 980cc. Ecu cannot go lower than 0.68ms and I want to try to change temin/va. I know that they are single values, but cannot find them :/
Double check your KRKTE conversion and also you'll need to do fkkvs corrections Especially on idle |
|
|
|
|
Logged
|
There is a free flash suite in progres
http://www.openmoose.net/blog/?page=renatus #1 Nefmoto -Karma Sponge! |
|
|
rossoner
Newbie
Karma: +0/-0
Offline
Posts: 6
|
|
« Reply #2513 on: March 08, 2024, 03:27:28 PM »
|
|
|
Double check your KRKTE conversion and also you'll need to do fkkvs corrections
Especially on idle
Yeah, I set fkkvs to 1 at the beginning to see how it will handle.. but I'll definitely need to do some corrections with fkkvs. Its my first time changing injectors, so I am playing a little with the different maps to see how they will affect the afr on idle, cruising, WOT... Thanks! |
|
|
|
|
Logged
|
|
|
|
|
s60rawr
|
|
« Reply #2514 on: March 09, 2024, 08:18:07 AM »
|
|
|
Yeah, I set fkkvs to 1 at the beginning to see how it will handle.. but I'll definitely need to do some corrections with fkkvs. Its my first time changing injectors, so I am playing a little with the different maps to see how they will affect the afr on idle, cruising, WOT... Thanks!
fkkvs tool work great takes a few runs. be sure to start with idle and slowly work your way up |
|
|
|
|
Logged
|
There is a free flash suite in progres
http://www.openmoose.net/blog/?page=renatus #1 Nefmoto -Karma Sponge! |
|
|
|
prj
|
|
« Reply #2515 on: March 09, 2024, 09:23:27 AM »
|
|
|
Double check your KRKTE conversion and also you'll need to do fkkvs corrections
Especially on idle KRKTE and FKKVS is not going to do jack shit for him when he is hitting TEMIN dude. He correctly diagnosed and identified the problem, he got the solution as well. |
|
|
|
|
Logged
|
|
|
|
rossoner
Newbie
Karma: +0/-0
Offline
Posts: 6
|
|
« Reply #2516 on: March 09, 2024, 09:38:52 AM »
|
|
|
KRKTE and FKKVS is not going to do jack shit for him when he is hitting TEMIN dude.
He correctly diagnosed and identified the problem, he got the solution as well.
Yep, rich idle gone with lowering temin |
|
|
|
|
Logged
|
|
|
|
|
s60rawr
|
|
« Reply #2517 on: March 09, 2024, 02:50:04 PM »
|
|
|
KRKTE and FKKVS is not going to do jack shit for him when he is hitting TEMIN dude.
He correctly diagnosed and identified the problem, he got the solution as well.
Well .. ya That's how that works I was just being general, hard to gauge how along someone is and isn't from a few posts. Chill DUDE |
|
|
|
|
Logged
|
There is a free flash suite in progres
http://www.openmoose.net/blog/?page=renatus #1 Nefmoto -Karma Sponge! |
|
|
|
prj
|
|
« Reply #2518 on: March 10, 2024, 03:34:33 AM »
|
|
|
Well .. ya
That's how that works
I was just being general, hard to gauge how along someone is and isn't from a few posts.
Chill DUDE All the info was in the first post, you not only did not understand anything, you also didn't read the followups, which solved everything. I'm gonna call your ass out every time on your shit, if anyone deserves that on here it's you. There was also nothing hard to gauge. He correctly identified the issue and was directly asking for the correct maps. This implies strong knowledge of how the ECU calculates injection AND ability to log and diagnose. He's probably better at mapping the ECU than you are. Instead he got a runaround of by one guy "oh, you don't need to change that" and then the straight up bad info by the other guy "oh, your krkte is probably wrong". Wrong advice is worse than none. All he needed were the map addresses, he got everything else sorted. |
|
|
|
« Last Edit: March 10, 2024, 03:40:18 AM by prj »
|
Logged
|
|
|
|
keichi
Full Member
Karma: +11/-2
Offline
Posts: 105
|
|
« Reply #2519 on: March 10, 2024, 05:56:30 AM »
|
|
|
Instead he got a runaround of by one guy "oh, you don't need to change that" and then the straight up bad info by the other guy "oh, your krkte is probably wrong".
Wrong advice is worse than none. All he needed were the map addresses, he got everything else sorted.
It was me who told him not to touch TEMIN. I said this based on my experience with 980cc injectors. Every single car i tuned with 980cc injectors kept perfect AFR at idle without touching stock TEMIN at all Well looks like all those cars had broken O2 sensor EDIT: I checked few files. In one case i lowered TEMIN from 0.7 stock to 0.6 - perfect AFR with this. |
|
|
|
« Last Edit: March 10, 2024, 06:13:04 AM by keichi »
|
Logged
|
|
|
|
|
