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  1. Replies
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    I became really complacent and was doing a lot of...

    I became really complacent and was doing a lot of flashes to get the car to idle. It sat for a while and the battery was getting low in the car. Once the car died during a flash but I was able to...
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    I have a 2014 chevy spark that I am currently...

    I have a 2014 chevy spark that I am currently trying to tune using hp tuners after adding a turbo, larger injectors, fuel pump, flex fuel sensor, etc. I think something like this requires a lot of...
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    I had that issue fairly recently but smoothing...

    I had that issue fairly recently but smoothing out areas of change before calculating coeffocients seems to prevent that from heppening for me so far
  4. If your car or a different model that uses that...

    If your car or a different model that uses that ecu has flex option you could look at what pins in the ecu the sensor should plug into. For mine, I looked to the chevy Cruze service manual through an...
  5. What ecu? Have you looked to see if you can...

    What ecu? Have you looked to see if you can enable a sensor? I installed a sensor with an e78 but I still am trying to figure out if I will be able to enable it or if my OS will prevent it from...
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    Is your fuel pump working? Or are you getting...

    Is your fuel pump working? Or are you getting fuel to the rail?
  7. max torque, peak torque and torque advance were...

    max torque, peak torque and torque advance were also ones that should be tracked, I thought. Not sure if they are in your scanner though, I use my phone on here. I'm trying to learn what to watch for...
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    I would submit a ticket to support if you...

    I would submit a ticket to support if you haven't. I've been assuming this is a car you already have licensed and is a vehicle supported by hp tuners. One thing you could try is uninstalling both...
  9. I have come across this a few times as well when...

    I have come across this a few times as well when working on my vve table for an e78 2014 chevy spark.

    I assumed the issue for me was due to large injectors and possibly incorrect injector data....
  10. Thanks for the info on e78 not having 2 bar...

    Thanks for the info on e78 not having 2 bar option. I have been trying to find out how to switch to 2 bar the last few days.
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    Does your laptop recognize when the mvi2 is...

    Does your laptop recognize when the mvi2 is plugged and unplugged from the laptop? If not, you may need a new usb cord. This worked for me once.
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    Thanks for the response. I have been dealing with...

    Thanks for the response. I have been dealing with a somewhat similar scenario where my car is pulling timing but mine is doing it at idle. I added a turbo and bigger injectors and this is my 1st time...
  13. Did you get good info with your injectors? That...

    Did you get good info with your injectors? That will make that side of the equation relatively easy.
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    Just looking at it from lambda, you want to add...

    Just looking at it from lambda, you want to add 15 percent fuel or run 15% richer to get from 1 to .85 so you multiply the values by 1.15 to increase each cell by 15%.
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    What did you have to do to get eng tq below max...

    What did you have to do to get eng tq below max tq?
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    23,491

    Thanks for the response. I've been reading...

    Thanks for the response. I've been reading through older threads trying to learn as much as I can on this subject.
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    Thanks for the info. I have been trying to set up...

    Thanks for the info. I have been trying to set up a histogram for the driver demand table as you describe. I have the axis set up to match my dd table and I'm logging the channels that you mention...
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    970

    Thanks Rick!

    Thanks Rick!
  19. Replies
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    So the ecu I received was the same hardware but...

    So the ecu I received was the same hardware but different OS. The ecu was from a sonic not a spark but same year. I licensed the new ecu and was surprised to see it was only 2 credits instead of 4. I...
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    My very inexperienced thought is you are probably...

    My very inexperienced thought is you are probably being limited by brake torque. If you post a log and tune I'm sure someone can give you a better answer.
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    Great point. This is an e78 from a 2014 chevy...

    Great point. This is an e78 from a 2014 chevy spark. I added a turbo from a 2016 chevy cruze and a flex fuel sensor/injectors and walbro pump. I'm struggling to learn this gen 5 torque based tuning....
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    Thanks for the response. I just ordered the ecu...

    Thanks for the response. I just ordered the ecu and plan to write entire my last file. If I write entire the file will I still need to deal with vats? Thanks again, I appreciate the info. This may...
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    She's a brick!

    So I'm pretty sure I bricked my ecu this weekend. My MVI2 no longer can read or write into the ecu and it does not recognize the ecu information like vin number or operating system when I plug it in....
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    Any new insight on this? I have the E78 in my...

    Any new insight on this? I have the E78 in my spark that I bolted on a Cruze turbo. I can tell my tables are way off now and I'm hoping to learn what to track and what to change. Right now my...
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    Sorry to hear you are still in limbo. Out of...

    Sorry to hear you are still in limbo. Out of curiosity, does your laptop make a notification noise when you connect/disconnect the mvi2? Also, do the lights on the mvi2 do anything when plugged into...
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