1228330 Mask

[dave w]

Maybe the 307 is code LV2?

https://en.wikipedia.org/wiki/Oldsmobile_V8_engine

https://www.tunerpro.net/gmOBDI.htm Definition A043 see attached

[dave w]

Maybe the 307 is code LV2?

https://en.wikipedia.org/wiki/Oldsmobile_V8_engine

https://www.tunerpro.net/gmOBDI.htm Definition A043 see attached

I've imported and edited the .ads to .adx, see attached.

[Isaakfirestar_]

Yes, it's an LV2.
I'm not sure I understand the difference between the .ads and .adx, but I'm sure when the time comes to datalog the car I'll be happy that I had both. Either way I really appreciate you taking the time to help me out with this.
To modify the tune I would need another file, the .xdf, right? This is the file I've had the most trouble finding.
Thank you again for your assistance,
Isaak

[dave w]

The current version of TunerPro RT uses the .adx file. Older versions of TunerPro RT used the .ads file.

Unfortunately, I was not able to find a .xdf file. Likely a .xdf file is not available for CCC.

[Fast355]

The current version of TunerPro RT uses the .adx file. Older versions of TunerPro RT used the .ads file.

Unfortunately, I was not able to find a .xdf file. Likely a .xdf file is not available for CCC.

I have a functional XDF file for that ECM. Chips will be the issue.

[Isaakfirestar_]

Would you be able to post the xdf you have? I'd like to try messing around with it a bit.
Thanks, Isaak

[Fast355]

This is only for the 307 version of this ECM. 305/350 was coded differently despite the same ECM number. Attached both a XDF and ECU file as well as a stock BIN. Everything should be functional enough to peek around inside the later CCC ECM. I think I also have some stuff for the 8079 and maybe a $40 code if I dug around. I read CCC BINs for a 1983 G20 LF3 California 305 (snagged the spark map as a starting point for my 305 TBI with 081 heads), 1984 Regal with a LG4 and a 1985 L69 Monte Carlo a decade ago but those I believe were lost in a hard drive crash.

I found the CCC setup had a duty cycle table similar to a VE table that operated the mixture control solenoid in open loop. When changes are made to the the engine or carb that affect the CCC system, it is best to setup a histogram table using the values in the table and the commanded duty cycle in closed loop, similar to adjusting a VE table. Adjust that table and the fueling in open loop will be more accurate. The setup I tuned years ago was a 1988 Fleetwood with a 403 that had 1970 W30 350 heads and intake, Mondello custom cam and the Q-Jet recalibrated. Later swapped the 403 to TBI and then again to a MPFI manifold off a Olds 350 Seville using the TBI without the injector pod as a throttle body. Both the TBI and MPFI setup had a 4L60E behind the engine with them.