Cerbera 4.5 timing table
Discussion
Gentlemen,
I am currently wiring my Cerbera up for a Haltech nexus R3. (Video to come)
In the evening once i am sick of crimping and stripping I am trying to get some sort of a plausible configuration on the haltech software. At this stage i figure I will run it based on TPSxRPM (same as stock) even though the Haltech has a built in MAP sensor (which maybe will come in useful once it's all running??)
Does anybody have the stock TPSxRPM timing table? Even if I pull a couple of degrees out for safety it would be helpful to get me in the ballpark.
Regards
Simon
I am currently wiring my Cerbera up for a Haltech nexus R3. (Video to come)
In the evening once i am sick of crimping and stripping I am trying to get some sort of a plausible configuration on the haltech software. At this stage i figure I will run it based on TPSxRPM (same as stock) even though the Haltech has a built in MAP sensor (which maybe will come in useful once it's all running??)
Does anybody have the stock TPSxRPM timing table? Even if I pull a couple of degrees out for safety it would be helpful to get me in the ballpark.
Regards
Simon
I’ve been trying to find this with a combination of a reverse engineered firmware and tracing the MbE942 circuit. I’ve then asked a couple of different AI bots to find how the timing works.
It produced a few tables, but I’ve yet to see if they look right. The AI may have made up the whole thing
It produced a few tables, but I’ve yet to see if they look right. The AI may have made up the whole thing

Here is a table generated by a script that examines the firmware for 4.2 cool rom. This is for the odd bank
This is for the even bank
USE THESE VALUES WITH CAUTION.
I'm not an engine guy, and most of the info extracted has been by an AI - stunning work by the AI
Cheers
Mark
| RPM | 0% | 15% | 30% | 45% | 60% | 75% | 90% | WOT |
|---|---|---|---|---|---|---|---|---|
| 400 | 21.2 | 21.2 | 21.2 | 19.8 | 28.0 | 20.0 | 10.0 | 10.0 |
| 600 | 21.2 | 21.2 | 21.2 | 24.0 | 28.0 | 20.0 | 10.0 | 10.0 |
| 800 | 21.2 | 21.2 | 21.2 | 24.0 | 28.0 | 25.5 | 25.5 | 25.5 |
| 1000 | 21.2 | 21.2 | 21.2 | 24.0 | 28.0 | 25.5 | 25.5 | 25.5 |
| 1200 | 18.0 | 18.0 | 18.0 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 |
| 1500 | 18.0 | 18.0 | 18.0 | 28.0 | 32.0 | 38.2 | 28.0 | 37.0 |
| 1800 | 18.0 | 18.0 | 20.0 | 32.0 | 36.0 | 46.0 | 38.5 | 40.0 |
| 2000 | 22.0 | 22.0 | 22.0 | 20.2 | 30.5 | 40.5 | 42.0 | 41.0 |
| 2500 | 26.0 | 26.0 | 26.0 | 26.0 | 36.2 | 41.5 | 48.8 | 48.0 |
| 3000 | 28.0 | 28.0 | 28.0 | 28.0 | 41.0 | 59.0 | 62.0 | 61.5 |
| 3500 | 28.0 | 28.0 | 28.0 | 28.0 | 48.0 | 59.0 | 62.0 | 62.0 |
| 4000 | 32.0 | 32.0 | 32.0 | 32.0 | 50.0 | 59.8 | 63.8 | 63.8 |
This is for the even bank
| RPM | 0% | 15% | 30% | 45% | 60% | 75% | 90% | WOT |
|---|---|---|---|---|---|---|---|---|
| 400 | 10.8 | 14.0 | 13.8 | 12.0 | 10.8 | 12.8 | 11.8 | 10.0 |
| 600 | 10.8 | 14.0 | 13.8 | 12.0 | 10.8 | 12.8 | 11.8 | 10.0 |
| 800 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 |
| 1000 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 | 25.5 |
| 1200 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 | 24.0 |
| 1500 | 24.0 | 22.5 | 21.5 | 21.0 | 20.0 | 24.8 | 24.0 | 26.0 |
| 1800 | 38.2 | 32.0 | 28.0 | 26.2 | 25.0 | 28.0 | 26.8 | 29.2 |
| 2000 | 34.2 | 28.0 | 26.0 | 26.0 | 26.0 | 26.0 | 28.0 | 28.0 |
| 2500 | 44.0 | 40.0 | 34.0 | 33.2 | 31.5 | 29.0 | 28.5 | 29.0 |
| 3000 | 54.0 | 48.0 | 34.0 | 32.0 | 32.0 | 32.5 | 32.8 | 33.2 |
| 3500 | 55.0 | 50.0 | 36.0 | 33.0 | 33.0 | 32.0 | 32.0 | 29.2 |
| 4000 | 56.0 | 54.0 | 40.0 | 38.0 | 33.0 | 32.5 | 32.0 | 30.5 |
USE THESE VALUES WITH CAUTION.
I'm not an engine guy, and most of the info extracted has been by an AI - stunning work by the AI
Cheers
Mark
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