Hi guys, I just had my 2006 A6 Edlebrock E-force installed. We loaded the handheld tune supplied by Edlebrock so I can take my car to be tuned later. My only mod on the car is a LG header. The car runs fine and is very quite. I am very impressed by the kit.

Here is my problem, while driving home, the check engine light came on which I think was caused by the O2 sensor. It was turned off by my previous tuner when I had the header installed. The car however will surge a little, if I give it a little gas and then take my foot off the gas, the car will still continue to accelerate to about 1200 rpm.

The 2nd problem is that my paddle shifter will no longer work. I think the tuner installed the software for the A4 instead of A6 because on my way home I believe I am driving in 4th gear. It doesn't matter if I was in D or S, I would be at 2600 rpm at 65 mph. I would normally tech about 1600 rpm in 6th. Again there is no paddle function which is why I think the tune I loaded is for an A4.

When I installed the tune, it has Corvette Automatic or Corvette Z06.

I am going to take to Edlebrock on Monday. I did not see any update for the 1593 kit.

Just would like to hear from any A6 guys that loaded the Edlebrock handheld tune if they see an A6 tune or did they see the same Corvette Automatic or Corvette Z06 on their tune.

I believe that Edlebrock 1593 is for 2005-2007 which would include both A4 and A6, if that is the case, how would the tune decide whether you had the A4 or A6 since it did not ask for the year of the car but just have Corvette Automatic or Corvette Z06 on their tune.

Thanks for any information.

 

Your CEL, surging and "cruise control" up to 1200rpm as some call it, is a result of the car not being properly calibrated for the configuration. The Edelbrock tune that ships with the kit was developed for an otherwise 100% stock configuration. You mentioned you have headers and that the car was previously tuned. You installed the Edelbrock calibration on top of something other than a factory tune. Were transmission calibration changes part of that previous tune? My guess is "YES".

Put the factory stock tune back in the car to clear whatever was done by your previous tuner and then install the Edelbrock calibration. I'll bet a beer your transmission problems go away. Your engine drive-ability problems won't go away until the engine is properly tuned for the setup you have.

Bottom line: That Edelbrock handheld tuner comes with a tune that was designed specifically to augment the factory bone stock OEM tune. It isn't magic in a box and was not designed to integrate with a tune of unknown origin.

 

It specifically states that you must have a stock tune in the car for the hand held to properly tune your car for the E-Force. With your additional mods, you need to contact Chris at Edelbrock or get a local tuner to correct your tune.

Now, here's where it get's sticky...

The LS2 E-Force tune is a scaled tune. It lies to the ECM and says that your engine is smaller than it is. This will not cause any issues but your DIC is now wrong on Instant MPG and Miles remaining til empty. To get those to read properly, you need to get a non-scaled tune in the car. SO, bottom line, you need to get a good tuner and load the stock tune in the car, then modify it to work for the E-Force, and then tune the car to take advantage of your other mods.

OR, if you still have contact with the tuner that set up your car for your mods, put that tune in and adjust it to run the E-Force (Timing, MAP, IFR, MAF, etc).



Elmer

 

Just completed Installation of the 1593 E-Force to my 06 A6 Vert e/w Kooks Long Tube Headers, high flow Cats, Corsa Sport exhaust, VMAX Ported TB and Crane 1.8 quick lift roller rockers. Went on line and pulled the latest 1593 Tune and loaded tune April 1st. I have only started the car to make sure it runs and only worked off idle to about 1500 rpm. Throttle response off idle is very poor and trying to hold the rpm at 1500 with the accelerator pedal is very difficult, very touchy with very little accelerator pedal change creating 500 rpm shifts. I have not driven my vette yet and will not until I adjust the tune. I have HP Tuners and will play with the tune while the vette remains on jack stands. I would take it for a drive for data logging purposes but it is snowing at this very moment with snow forecast through Monday. Motorhead-47 (Ken) knows what he is talking about and his suggestion is spot on. Ken was there for me throughout my DIY E-Force install offering helpfull tips, and technical support. Working from the OEM tune will aid in simplifying the tuning process. However, my first aftermarket tune was created by the Corvette Connection in Denver and they have my OEM Tune. I will just work with what I have and adjust as required until I get it right.

I may place a request through HP Tuners Forum for a proven E-Force tune that works well with mods similar to ours or give Edelbrock a call to see if they have the same. In the meantime I will play with HP Tuners creating a difference list of changes between that of my last tune and the Edelbrock 1593 tune I just loaded. I will follow your post as I am in your same boat with what I believe are similar issues. I believe we will both resolve these issues but it will require some effort. If it were all very easy it probably wouldn't as much fun or satisfying.

 

Thanks guys for all the response.

Here is a little more information on my 2006 A6. I had installed Vortech and LG headers, the car was tuned for both engine and the A6 transmission to make it shift better and the O2 sensors was tuned off. Then the LS3 Edlebrock E-force came along and I read all the great reviews on the E-force so I had removed the Vortech but kept the LG headers. A stock tune was reinstalled back in my car so it could be driven while waiting for the LS2 E-force to be released. I believe the A6 tune was left alone.

Now that I have finally installed the E-force, I really like it over my Vortech since the power comes on early. The car is drivable and idles just like stock. The only problem I see so far is that the car does keep accelerate some after I stop giving it gas. The instant gas mileage is off because it shows that I am getting 35-50 mpg(I wish) on the highway doing 65mph. The major problem so far is that the Paddle shift no longer works and I seem to have lost 5 and 6 gear so the car works now like an A4. It does drive so far like a stock car.

My question now is whether I should just find a total stock 2006 or 2007 A6 tune(I hope both year are the same) and install it in my 2006, then re-flash the tune using the Edlebrock handheld and then have my tuner tweak my tune since the only difference between my car and a stock car would be the LG headers or just drive the car to my tuner and have him tune the car in its current condition. My concern is that it may be more difficult VS the other way.

I would appreciate any help from you guys since there are a lot of smart guys here. Thanks

 

Are you going to get it tuned locally? GDP/Newtech/Synergy/TPS... plenty of options.

Let me know when you get it all up and running... I'd be interested in a ride if you would be so kind.

 

Yes, I will be getting it tuned locally and I will be happy to give you a ride. Arnel and I might be at Thunderhill on May 28th if I can get the car to run right.

 

Charlie,

From what I recall, when the Vortech was removed it was re-tuned when your stock injectors were put back in. I'm almost certain the parts of the tune regarding the injectors were put back in and not write (basically, deleting everything) the complete stock. It sounds like a full flash of the stock tune is required as a base since only the differences are applied by Edelbrock tuner.

Call Edelbrock and see if they have a current A6 tune that can be re-installed via the Predator. If not, ask to be credited for the cost of the tuner since it won't be used, being that you will need a tuner/tuning package to apply the right one. I remember Predator's being able to support tunes via email so I'm hoping this applies to the one sent with your kit. If so, ask if they can provide an A6 tune that has the rear 02's turned off. The mpg being off "a little" is common but that much is not acceptable along with all the symptoms you've mentioned. Seeing as I don't see "all" owner's of this kit replacing their tunes, this should be a step worth taking.

 

Joe,

Beyond the headers, some of what you are seeing comes from the ported TB (changes the true "ETC Area Scalar" value and from the 1.8 rockers which give you some of the same effects as a cam swap. You'll need to custom tune as you mentioned.

 

When my Vortech was removed and the stock injectors installed the stock tune was installed since my car was basically a stock 2006 A6 with the exception of headers. I believe the O2 sensors were also turned off. I was not sure if there were any changes to my A6 transmission or not.

I will call Edlebrock tomorrow to see if they have heard any of the problem I am experiencing.

The other thing I could do is to have my Vortech tune put back in my car and then see how it runs. I hope this would at least give me back my 6 speed auto instead of the 4 speed auto I currently have now.

As usual, all opinions are welcome.

 

You definitely do not want to put the Vortech tune in...many differences to include the injector size...car would run poorly.

 

You have a 2.5 bar map sensor in the E-Force, different injectors, lots of changes and your vortec tune just won't cut it. I'd be afraid of blowing something up by putting that tune in the car. with motorhead.

Elmer

 

There are several 2006 LS2 stock calibrations over on the HP Tuners "Tune Repository" section. This might be a better place to start. Load a stock tune and then squirt the Edelbrock tune and build from there.

 

Thanks guys, I will just have a stock 2006 or 2007 A6 tune install back in my car, then I will reload the Edlebrock tune, then I will drive my car to my tuner and let them start from there. What do you guys think about this? Thanks

 

You have chosen wisely grasshopper!


Elmer

 

That is EXACTLY what I would do if it were my car.

 

Thanks guys for the feedback, that is what I will do then.

 

Ken,
Thanks for the tip. I did access HP Tuners Repository and looked at a couple of the stock tunes (Straighline Performance and R Claros). They look good so I will load one of them followed by a reload of my Edelbrock Tune but as you mentioned earlier, I will need to tweek the tune regardless because of my other mods.

 

Remember the part where I said it get's sticky. The LS2 E-Force tune is scaled or proportional. Their tune says you have .56L per cylinder where in fact you have .75L per cylinder.

Once you get to the tuners, reload your stock tune, then let him adjust your stock tune for the E-Force. You won't want anything from the E-Force tune in there. Your tuner can adjust for the MAP, MAF, IFR, timing, and all that other junk to get your car purring!

Elmer

 

Thanks, I will pass this information to them. Thanks again for all your help and input.

I love all the knowledge and help on this forum.