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    Thanks for the quick reply. Should probably...

    Thanks for the quick reply. Should probably remove them from your supported vehicle list though if you're not going to support them.
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    Unsupported Volt OS

    Hoping to get support for the latest Chevrolet VOLT E78 OS 12654413. I've attached the read off.

    18741

    Have V7.5.7 Build 291 & V8.2.2 Build 284 installed
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    drop me an email

    drop me an email
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    Thanks for the offer! The issues were occurring...

    Thanks for the offer! The issues were occurring with every tune, whether stock or altered. Which solidified a hardware issue.

    I really don't have much changed on the latest tune that y'all can...
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    SOLVED: Bucking was caused by a failing spark...

    SOLVED:

    Bucking was caused by a failing spark plug coil pack (all 1 unit). Back to running well. THOUGH, still have crazy high lambda readings during WOT
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    E78 Cruze 1.4L TC tuning

    I've spent several months working on a 2011 Cruze with the 1.4L running it on fuels such as gasoline, methanol & ethanol. We've run completely stock tables except for the ethanol related settings....
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    Sticky: Sorry to hijack the thread, we'll make another...

    Sorry to hijack the thread, we'll make another one to get further with the problem solving.
    Taz - that was the first thing we tried, unfortunately, after filling with 5 gallons and having FFV on,...
  8. Unfortunately the EPA uses an energy multiplier...

    Unfortunately the EPA uses an energy multiplier for most of its E85 ratings, so you'll consistently see the 30% drop on the sticker as standard, rather than actual test results.

    Buick Regal...
  9. My first tune got a 20% drop in mileage. Im...

    My first tune got a 20% drop in mileage. Im testing methanol this week and then back to E85. I expect a 5-10% drop by final tweaking. GM can get 0% loss with E85 and their turbocharged 2.0L. Ill do...
  10. In late 2011/2012, the EPA decided that the flex...

    In late 2011/2012, the EPA decided that the flex fuel algorithm was not appropriate because of the following condition not setting off the correct diagnostic trouble code.

    If the vehicle is...
  11. The 11 doesnt need the sensor. The algorth works...

    The 11 doesnt need the sensor. The algorth works fine. Id be willing to bet the 12-14 dont either but dont have one on hand to alter.
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    Need stock Chevy Volt tunes from 12/13

    Can someone PM me and I'll get you my email address? In need of the stock tunes to look at some tables. I'll even take a 2014 tune!

    Thanks!
  13. I've gone the opposite route on our 2011 Cruze....

    I've gone the opposite route on our 2011 Cruze. Rather than add a sensor, I just activated the flex fuel algorithm and filled out the tables. There were around 15 I had to fill out. Will be testing...
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    Best news I've heard all week. I'll order one...

    Best news I've heard all week. I'll order one this week!

    Just got off phone with GM
    PN 13577379

    2012 Impala was what I used for the part search.
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    Did you want the 2012 Traverse & Impala tunes...

    Did you want the 2012 Traverse & Impala tunes emailed to you? Like I mentioned, the Traverse behaved great as an FFV with the virtual sensor enabled.
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    I did mean the 3.6L SIDI, which felt like an...

    I did mean the 3.6L SIDI, which felt like an awesome engine! We got 26.5 MPG with the Traverse at over 6000 feet. Unfortunately many of the PIDs were not working (SAE.E85R, E39AF_DEM, GME85PCT,...
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    Thanks for the information. Exactly what we're...

    Thanks for the information. Exactly what we're trying to find out with this ECM & tests. The 'default' setting is FF off & calculated sensor. I'm actually surprised with how many fields they do have...
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    Wanted: E39 Flexible Fuel Tunes

    Doesn't matter what vehicle (but prefer 2012 Traverse). Trying to compare what GM uses for its stock FFV settings to those without. My email is my screenname at gmail.
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    E39 Operating System Compatability List

    Is there one yet? I'm a bit weary about picking up a random E39 ECM and reflashing it with ours. I can't buy an ECM through GM since they are 'on restriction'. Here is my 'best option' right now.
    ...
  20. Installing the latest build now. Should take care...

    Installing the latest build now. Should take care of it according to another post.
  21. E39 - 'Unrecognized PCM' error with 2012 Chevy Traverse

    Just picked up a Traverse. Did a readoff with V8. Opened with V7.5 and I get an 'unrecognized PCM' error. What's the next step? I need access to the tables and all it will give me is the OS/cal...
  22. I'm fortunate enough to have a 23% price gap in...

    I'm fortunate enough to have a 23% price gap in CO, while only losing 5-18% gas mileage. I feel the advantage doesn't necessarily come from my wallet, but from buying domestic fuel. What drives me...
  23. Thread: methanol

    by engimuneer
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    I run E85/M60 & M100 on 2.2L Ecotec engines. ...

    I run E85/M60 & M100 on 2.2L Ecotec engines.

    Make sure your o-rings (fuel pump module, orings) have been swapped out to something like Buna-N rather than the OEM Viton units.

    Tuning the fuel...
  24. BLK02WS6 has it exactly right on his virtual...

    BLK02WS6 has it exactly right on his virtual sensor description.

    Here's my take based on using 07+ E37s.
    We took an 09 Cobalt E37 ECM (non FFV) & turned on the FFV switch using EFILive. When I...
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    Flexible fuel Cruze/Sonic?

    I've noticed that most of my E37 cal files have the option to enable flexible fuel (via virtual sensor & algorithms). Are these same capabilities within the E83 & E78 ECMs? If so, anyone willing to...
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