I have DFCO enabled running OLSD and it doesn't cause me any problems.

 

Hey Corey,

Definitely would recommend running COS3 on your truck if you can. As mentioned, the dual spark map functionality in speed density and commanded fuel by RPM table are great benefits.

Running open loop full time shouldn't be a problem either if your injector settings are correct. If you do find that you tend to go rich in cooler temps and lean in higher temps, you can use an IAT VE multiplier to correct this.

Justin

 

I agree with that but you told me on a couple different occasions it was pointless on my setup...what changed?

 

Thanks for the input Justin. I was just checking out the COS tutorial and some examples of B3647, and I think I am going to really like COS3!!! I just need to upgrade my cable from personal to commercial so I can load the new OS.

So a couple of questions with the new B3647 table I don't need to use the reqular PE table and parameters. So do I just set the B3618 to 14.63 or higher? Is B3605 still used in the COS3?

 

If you're runnign a MAF tune, then the commanded fuel x rpm table is the big benefit (and Valet mode if you want it). The downside for you is that you've got an 07, which no custom OSs are available for as of yet...

 

B3605 will go away and be replaced with B3647.

You can keep PE active it you'd like, otherwise, just set the PE Map enable to be greater than 100kPa and it'll never go into PE mode.

 

I've run our MAF RTT setup on several NA setups, being able to tune many of the more important tables ie maf, spark, VE, & pe in real time can be a huge time saver & make dialing in nearly any combination much easier than without being able to utilize Real time tuning.

 

but an 05 os can be flashed in then an 05 custom os over that

 

Have you successfully done that? I've encountered problems with flashing an 05 into an 06 with the TAC module. Then again, the 06 was supercharged. Kept going into reduced power mode.

 

maybe one day we will get it to work....