Assistance with weak acceleration/torque seems at all RPM ranges

[fershig]

Hi,

2011 Camaro 2ss, LS3 (swapped out l99), 6l80E, Stage 4 CAM, Ported Heads, CAI, Long header, SummitPro TC 3200 stall (single), 4.10 ring and pinion gear, 29.3 tire size rear, everything else is stock.

This was originally a Mail order tune.

Issue: acceleration bogs engine down anything above a very slow and steady acceleration. I cant really get on the throttle. Overall issue seems to occur regardless of RPM. Lastly, transmission will creep up to trans idle overheat.

I have attached my tune and a log of general info. I do not have wideband. I am happy to log more useful information for any of you experts I would just need some guidance how to set up what you need to complete the picture i.e. PiD.

Anyways before committing to a full blown I figured I'd throw it out there to see if you guys and gals can discern what might be wrong, suggestions, to get my car accelerating normally.
Attachment 118913Attachment 118914
Thanks in advance.

[MakesBadDecisions]

Diagnose and repair the code P0442 - Evaporative Emission System Leak Detected (small leak) (Current)

You are not logging close enough to see a full picture. Load this channels list up and get a log of start up and idle for 2-3 minutes and then go for the same drive as you did last time, when you get home let car idle for another 2-3 minutes to capture some data. Post that log and along with the tune that is in the car currently.

You WILL need a wideband to get WOT fueling accurate

[5FDP]

Whoever is offering a mail order tune for a combo like that shouldn't be doing business. It's impossible to predict all the changes that a vehicle will require.

[fershig]

Diagnose and repair the code P0442 - Evaporative Emission System Leak Detected (small leak) (Current)

You are not logging close enough to see a full picture. Load this channels list up and get a log of start up and idle for 2-3 minutes and then go for the same drive as you did last time, when you get home let car idle for another 2-3 minutes to capture some data. Post that log and along with the tune that is in the car currently.

You WILL need a wideband to get WOT fueling accurate

Thanks for your help. Will do today or tomorrow.

[fershig]

Diagnose and repair the code P0442 - Evaporative Emission System Leak Detected (small leak) (Current)

You are not logging close enough to see a full picture. Load this channels list up and get a log of start up and idle for 2-3 minutes and then go for the same drive as you did last time, when you get home let car idle for another 2-3 minutes to capture some data. Post that log and along with the tune that is in the car currently.

You WILL need a wideband to get WOT fueling accurate

How do i load your xml file into scanner?

[MakesBadDecisions]

save the .xml file to the This PC/Documents/HP Tuners/VCM Scanner/Channel Configs folder.

[GHuggins]

You know - first off why? Why did you swap out the l99 for a ls3? Was it just because of the initial power numbers or was the l99 having problems? Only reason I'm asking is that's part of your problem.

There are only 3 main differences between a ls3 and a l99. L99 has variable cam timing and because of this it has reliefs cut into the pistons to allow for the extra valve clearance causing a drop in compression ratio. The ls3 has a more aggressive cam from factory which is ALL that really gives it it's extra hp and tq. Me personally I would have rather had the reliefs and kept the l99...

Now with that being said this should have turned the lightbulb on for the two different tunes. LS3 doesn't have variable cam - your tune still shows variable cam present just for starters.

[fershig]

You know - first off why? Why did you swap out the l99 for a ls3? Was it just because of the initial power numbers or was the l99 having problems? Only reason I'm asking is that's part of your problem.

There are only 3 main differences between a ls3 and a l99. L99 has variable cam timing and because of this it has reliefs cut into the pistons to allow for the extra valve clearance causing a drop in compression ratio. The ls3 has a more aggressive cam from factory which is ALL that really gives it it's extra hp and tq. Me personally I would have rather had the reliefs and kept the l99...

Now with that being said this should have turned the lightbulb on for the two different tunes. LS3 doesn't have variable cam - your tune still shows variable cam present just for starters.

Very helpful. thanks for taking the time to review and more important, catching that issue.

[fershig]

Thanks, will do so. log to follow shortly.

[Alvin]

This needs more tuning but the issue looks like a miss on the drivers side. I could tell better if you logged a wide open throttle pull.