I've forwarded the info to our head engineer for review and one of us will post up when we figure out more.
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Bill,
FYI-
I have an update on the overboost problem one of my customers was having. I had him log some data under 2.23beta so I could see the Boost DC%, desired boost, and absolute load (boost PIDs are still not present in 2.22). With this data it was clear that he was exceeding the desired boost by 12-15% for several seconds before triggering the overboost code. So, it appears that there may not be a pressure limit for triggering overboost like I insinuated, but a time factor for a certain percentage over desired boost. I think you can cross this one off your list, but I still need help with the max maf flow of 240g/sec issue resolved.
It looks to me like the overboosting customer is having some issues with his boost control solenoid and/or his wastegate diaphram. The issue appears to go away when it is warm out or after his engine is warm on cold days. From the data, the boost solenoid is trying to open further (Boost DC%) but the boost is not dropping. Once the engine is very warm, the max loads under WOT drop and the overboost condition is not triggered.
Thanks
Any word on an updated beta with support for the rest of the 08 V6 Aeros?
I am looking into Saab tuning and wondering what the standards are on the 2.8t for max load. I want to safely optimize the engine without really killing the lifespan of the engine. I am really looking for general guidelines based around this platform.
Regards,
Mike
All outstanding defs are done, we'll probably be looking into new tables in the 2nd 1/4 of 09'.
Any progress with the Saab V6 support?
If anyone has additional info etc , please PM/E-mail or post in this thread.
Thinking of buying one as they are getting quite affordable here in Sweden.
Regards Marko
We are still missing alot. There is a SpeedLimiter inside the VCM and boostcontrol. And most likely different VE maps for different fuels. ME9.6 is bifuel compatible, so alot of maps is missing.
The speedlimiter work just like in Saab 9-5/OG9-3 with Trionic 7, it takes boost of, shuts the throttle, and finally stepping down the ignition.
I have sent two identical files to support, one with speedlimiter at 240km/h and the other at 260km/h. That should do the trick with the speedlimiter, atleast on TurboX.
Hmm strange, they send a reply, that it is no difference between the two files????? I have read all the technical information Saab gives out to our workshop, and all that says the speedlimiter is in the PCM. ESP sends one of the rear wheelsensor speeds on P-bus, then the PCM recalculates that signal with help of the programmed wheelsize(ppk VSS pulses per mile?? kilometer more likely) to the correct vehiclespeed, sends that on P-bus to CIM,that passes thru that information on I-bus to MIU, that show us the speed on the instrument. Also CIM uses the speed sent from ECM.
bump for anymore support on this?
I'm new to tuning and I just took my first set of log data on my Saab. I used the Saab 9-3 aero config from earlier in this thread, and most of it looks great. My one question is, I don't see any data on the WideBand O2 sensor line. Does the Saab come with a wideband o2 sensor standard of do I have to change this out? If I need to change it out, anyone have any recomendations?
I also noticed in the tables that for O2 sensors, the sensor in Bank1 Position 1 is good, but Band2 Position1 Sensor is always reading 0. Any thoughts on this?
Also me. ^ Help us Bill :)