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Well, got a good update. With stock numbers put back in all of the tables that were jacked up, it runs SO MUCH BETTER!! The on/off throttle jerkiness is almost gone unless you're in too high of a...

cgmrdc, I wish I could do that type of filter - I did a DBC conversion which I'm starting to see some of the potential downsides of. Using TPS to try to filter has been less than ideal so I'm back...

I pulled up a few stock CTS-V tunes and you're totally right, it seems like mine aren't stock at all. I guess that figures, I got the engine out of a gently crashed CTS-V and I wasn't sure what all...

Lakegoat, I do see what you're talking about with the spark table though, it does look far from smooth honestly looking at the graph.... Could that really be the stock table?! Better go to the...

Lakegoat, I was starting to notice that which was throwing me for a loop. I want to tune the decel spikes because I'm having some really rough on/off throttle transitions and bucking at low loads...

Lakegoat, I was expecting some lean spikes but it seems like it's getting leaner than it should for having DFCO off. I do think I need to tune for the lean spikes that I'm having regardless though,...

jsfrederick, I did check and can't find any apparent leaks at idle. May add some hose clamps to the nipple caps that I've got blocking off the driver side vac ports I'm not using just in case I have...

Hey everyone,

I'm running into an issue with trying to tune the MAF on my setup but getting bad data from my histogram. This seems to be caused by the engine running lean under decel and very...

I was wondering if anyone can shed some light on something I'm running into with converting to a LS7 card type MAF on an LS6 out of a 2004 CTS-V. It is running the stock CTS-V tune with some minor...

I finally got it to hold its own idle!!!!

I ended up noticing that while the MAF Frequency tables seemed pretty close in some areas between a CTS-V MAF and the LS3 card style MAF, it was actually...

Now I've got it where it starts off around 9:1 right at startup and then quickly increases to close to 12:1 within 3-4 seconds. Still maybe a little rich on the startup? At least now I think my...

Well I think I had at least a slightly more succesful attempt at idling today.

I ended up re-writing the entire stock program back to the ECU with as few changes as possible to start fresher and...

Thanks for checking it out. It does seem to have some pretty high IAC counts and the you're right that 9:1 for AFR seems pretty darn rich. I can get the IAC counts down by tighetning the throttle...

So I think you may definitely be onto something here because looking at the log trying to start it again, I see that the fuel trim cell is staying at 20, and then goes to 21 with some throttle input....

I'm sorry I'm pretty confused being an HP tuners noob. Is there any chance you can expand on that a little? I'm having trouble finding any good information online that has enough concise...

So what your're saying is basically I probably need to re-adjust the throttle blade set screw to lower the TPS voltage until the fuel trim cell is sitting at 19 with AC off and 18 with AC on? I just...

Thanks for the input GoatCheese.

I tried upping the rpm to 1200 and still got more or less the same result. It's not very happy if I try to keep it alive with the throttle, it wants to start up...

Hey everyone,

Wondering if anyone might be able to shed some light on an issue that I ran into with my build.

I'm using a LS6 from a 2004 CTS-V for a miata swap and have also swapped to an...