COS 5 Help Needed Here...Please

[L31Sleeper]

B0120 was set at stock, that won't work with a SD tune.

I was wrong about this, the PCM will ignore MAF tables once it fails it.

I think a serial WBO2 might give you better results.

[5.7ute]

johnv,

I searched around but, I am not really sure what "Adding the CAX file so you can lower the minimum transient pulse width may also help with rich decel/idle mixtures" means.

Can you give me a little info on that?
Thank you

In short, a cax file allows you to edit parameters not normally visible in the tune tool. There is a parameter that I have defined as minimum transient pulsewidth (B9021) that will prevent the PCM from commanding a short enough pulsewidth to get idle & decel fuelling in line. I dont have efilive on this pc so I cannot look at your file atm to see if it has been defined for your OS but will have a look later tonight.
If you have rich decel, this as well as too much cracker air will give you major cruise control type issues.
If you use B9021 in search & read the few threads on this and pulsewidth contribution to give you an idea on what is going on.

[joecar]

B9021 should be the only one that is needed (via cax file), since all the others have been included in the calibration definitions by Ross.

[tatasta]

B9021 should be the only one that is needed (via cax file), since all the others have been included in the calibration definitions by Ross.

Hey joecar,

I guess I still don't understand where to place cax file. Not sure what to do there. Not much info from my search.

johnv,

Thanks for the tune file. The car worked alot better. Ran the AUTOVE and got some good data. I posted up my last tune and log file. Not sure whether I am logging the right data for idle. It does idle better in park or in gear at a stop but still has cruise control effect at 30-35 mph.

Also, when I get on it hard from a stop or slow speed, the trans does not make the shift from first to second and hits the rev limiter. Fluid is full. I understand that it simply may not be able to handle the power but, is there any tuning I can do to help it?

Thanks to all for the help.

[joecar]

Hi Robert,

Copy the .cax file for your OS to the folder C:\Program Files\EFILive\V7.5\Calibrations.

When you open the tunetool, the new tables defined in the cax file shows up in the tunetool.

[tatasta]

Hi Robert,

Copy the .cax file for your OS to the folder C:\Program Files\EFILive\V7.5\Calibrations.

When you open the tunetool, the new tables defined in the cax file shows up in the tunetool.

I guess my trouble is that I don't seem to have a calibrations folder in V7.5. Do I need to create one?

[johnv]

can be a bit confusing...C:\Program Files\EFILive\V7.5\Calibrations

you need to find the "EFILive" file in C:/"program files"............. not "Documents"

[joecar]

Yes, under Program Files rather than My Documents.

[johnv]

RE the trans,
I would put some torque reduction back in on your 1-2 shift (DO801),
and maybe lower the shift RPM on the 1-2 shift (DO940) to give the trans more time to complete the shift.

can you post your std tune file so we can compare and see what you've done.

[tatasta]

can be a bit confusing...C:\Program Files\EFILive\V7.5\Calibrations

you need to find the "EFILive" file in C:/"program files"............. not "Documents"

oh my god...how embarrassing. got it now.