Welcome! Glad you joined us. I have been working on calibration of the MAF conversion for the 1987 944S. We decompiled the Autothority, found where VAF input...
Welcome. We have made some progress in the last while. We have a version of ROM that has been recalibrated for the for MAF which seems to work Jim found...
Say I think everyone noticed, but there is the major Domo of chips just joined our group. Thanks for signing on. We are a low rate email group. Alex just...
I added a knock sensor to the ML3.1 and ML1.2 design. Now that I proved it works, I have no idea what to do with it. I removed the FQS switch and added a 951...
I added a knock sensor to the ML3.1 and ML1.2 design. Now that I proved it works, I have no idea what to do with it. I removed the FQS switch and added a 951...
I finally went through the ML3.1 routines to port the algorithm to my DME editor. What the math stuff does is something like this: val1 = tabpnt[abridx-1]; //...
... proved ... That is great. I used a 951 KLR in my 924S to do it. Would it be possible to enhance your system with a small CPU to get a simillar external...
The MAF I am using is from a 2001 Ford Mustang. It has it's own separate power (12V) and ground (not ECU powered) to power the heater and electronics. It...
... No need. Go old school A simple analog circuit to take the ringing out of the sensor output. Remove the FQS switch and install a small daughter card. It...
... out ... Yes - I think I understand your approach. But I would personally prefer a way the ML3.1 was designed for and with the capability to identify the...
... with the capability to identify the knocking cylinder. But that would be The ML3.1 doesn't know. They add the hall sensor to the 944S and 944S2 for...
I believe the ML3.1 division code is very badly written. They use div at every division step (1 bit) which is a nonsense. It's very slow. But at least it...
Alexis, The overrun fuel cut-off for 1267355287 (87 924S/944) is at address 1456h to 145Ah. Varies from 1200rpm to 1520rpm. I changed it to 1720rpm. Nice! The...
... Sure. When you decelerate, the Motronic cuts the fuel. At about 1500rpms, the fuel is restored. But what BOSCH did not plan for, it isn't set high enough...
... In the later 951 code they changed the setting to 4000,4000,1200,1200,1200. With means a rpm limit of 4000 with a warm engine. So it looks like this...
A few years ago I investigated this, I'm sure it was close to the curves you will find for an NTC thermocouple that is 2252 ohms @ 25C. There's a table for one...
... curves you ... Thanks for the input. The Bosch NTC is a 2.5 kOhm@25°C - the newer MAF NTCs are 2 kOhm@25°C versions. They are not identical. But since...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
