med9.1.1 limiter that i cant figure

Bosch Motronic etc ECUs and PCMs
lgtmelo
Posts: 23
Joined: Tue Feb 27, 2024 2:03 pm

med9.1.1 limiter that i cant figure

Post by lgtmelo »

hi, please find attached the corresponding log in case checking it is necessary.

can someone point me to that could possibly limit the throttle opening other than KFWDKSMX (already maxed) and KLRLNMXN has more than enough load? MKBRMXWP, KFMDBGRG, KFMDBGRK, MIVMXPNGE, MIVMXNIVE, MDGAT, KFWDKSMX, all maxed from factory. KFPZU has limits over what im seeing so not it.

it can be seen from log that misopl1, and therefore, rlsol increases but throttle doesnt follow, up until the point where rl_w goes up regardless of throttle (because supercharger), so then throttle decides to open up. what else could i log?

car is a b8 s5 4.2, med9.1.1
a.jpg
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Knackersjewels
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cars: Stock VZ SV6
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Location: Maffra, Vic

Re: med9.1.1 limiter that i cant figure

Post by Knackersjewels »

Could be as simple as KFMIOP, or any of the torque tables. Boschs first way of torque limiting is by cutting throttle, before spark or fuel
lgtmelo
Posts: 23
Joined: Tue Feb 27, 2024 2:03 pm

Re: med9.1.1 limiter that i cant figure

Post by lgtmelo »

if it was iop would i still get these numbers for misopl and rlsol or would it be already showing as the limited numbers?

i generated kfmiop from irl using excel:
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Knackersjewels
Posts: 155
Joined: Thu May 05, 2022 10:24 am
cars: Stock VZ SV6
Cammed VZ SV6 (sson to be 6L45 converted and twin turbo)
VY SS L98 ute
VZ V6 AWD One Tonner
Location: Maffra, Vic

Re: med9.1.1 limiter that i cant figure

Post by Knackersjewels »

Fairly certain rlsol and misopl are calculated, so yes, I'd assume they will still change, regardless of limiters. Could be wrong, I only deal with ME9.6, but the basics are the same.
lgtmelo
Posts: 23
Joined: Tue Feb 27, 2024 2:03 pm

Re: med9.1.1 limiter that i cant figure

Post by lgtmelo »

i will log the usual limiters then, and post back. thanks for your input.

i was under the impression that if there was any limiter, my misopl and rlsol would show as the limited values (i.e. it would be applied and shown).
lgtmelo
Posts: 23
Joined: Tue Feb 27, 2024 2:03 pm

Re: med9.1.1 limiter that i cant figure

Post by lgtmelo »

Knackersjewels wrote: Sat Mar 30, 2024 11:34 pm Fairly certain rlsol and misopl are calculated, so yes, I'd assume they will still change, regardless of limiters. Could be wrong, I only deal with ME9.6, but the basics are the same.
hi, i have logged all the torque limiters i could find, and they dont seem to be the issue. its like there is a TB limiter that i cant see.
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