LittleBlue!

Spark Member
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About LittleBlue!

  • Rank
    New Member

Profile Information

  • Region
    Decline
  • Location
    USA
  • Current Vehicle
    2014 Spark
  1. I noticed driving style was a major factor. Is your dash reading also around 50mpg? Sorry, just read your comment again. Very impressive. My goal is $ per mile and power. I'm converting to e85 and throwing a turbo on. I am excited for the turbo and the CVT combo. I will not come close to the mpg you reached. What are your eco hacks? You could probably use hp tuners for more but it is spendy and 50 is pretty insane as is. You could find someone local with the set up. I'm MN based One potential useful tip is thinking aerodynamics. Those fog light spots where there are just grey indents should be smoothed out. One day I covered them with painters tape for fun. Seemed to help a tad but I didn't do any serious testing. A more permanent option like bondo might work if the results are good
  2. I've hooked up my flex fuel sensor just before the fuel rail and wired it to the ecm. The next step is to enable the sensor in hp tuners.
  3. This might sound really dumb but as a last option you could maybe save the plug and cut the wires going to the replacement part and part to be replaced. Then solder the wires going to the plug. Again probably dumb but may be an option. Chevy Beat seems to have some good guidance I would definitely explore first. Best of luck!
  4. I finished wiring the sensor to the computer and enabled the flex fuel sensor in the computer via hp tuners. I will still have to tune the vehicle but there is a baseline that will change based on ethanol content. I ordered a badge for the hatch. The ZZP midpipe I have been waiting for is finally back in stock so I ordered that as well. Should be here by early January.
  5. I feel your pain! I have had to disconnect a few on this car but not this specific connector. Usually, the part that slides allows you to squeeze or push down another catch. I'll see if I can find anything helpful online.
  6. I hooked the flex fuel sensor into the fuel line. I still need to put on hose clamps and wire the sensor. It's located just before the fuel rail.
  7. I bought black exhaust wrap to keep temperatures under the hood low. The first piece I tried was the down pipe. I also used a black sealer spray paint. Not bad for a Chevy Spark.
  8. I have been thinking about this a lot lately. Still no clue where it will end up.
  9. The wire and plug that hooks into the flex fuel sensor were delivered today. It is a perfect match. I was under the impression that it had the metal ends that fit in the J3 plug of my wire harness but it does not. Luckily, that sonic forum provides that information so I will order the rest of the parts/tools that I will need. Unfortunately, I had to order 25 so if you need some, let me know! Only cost $14. Total cost is still pretty low.
  10. My flex fuel sensor was delivered today. $35 and I bought the plug and wire leads for another $12. I still need to buy a fuel line connector removal tool for about $5 and a Male to female fuel line connector. Once everything is hooked up, the sensor will tell the computer the ethanol content and my computer will determine the right air fuel ratio, timing, etc.
  11. Here is a link to good write up on adding a flex fuel sensor to an e78. http://www.sonicownersforum.com/forum/do-yourself-articles/20205-flex-fuel-sensor-install-information.html The original poster installed a flex fuel sensor on their sonic. It explains there are two pins where the wires from the flex fuel sensor that I ordered will connect. In the back of the ecm there are three plugs. J1,J2,J3. The plug we are looking at is J3. On this plug we will be inserting a wire to spot 20 and 34. From what I have read there are grey plugs in these spots when not installed by the manufacturer. We take these plugs out and insert our wires. The forum linked also provides info on the correct plug size.
  12. You may be right. Actually, the pump and injectors both had e85 compatible in their descriptions. I have always been skeptical if there is actually a difference but I guess error on the safe side unless you know for sure or are willing to experiment. Again, I'm new so I'm learning as I go.
  13. I'm new to this so additional research is recommended. However, in my mind it comes down to air fuel ratio and the capacity of your pump and injectors. The higher the percent of ethanol you run, the more fuel you need. I believe the stoichiometric afr of regular 87 is 14.7, for e85 I believe it is 9.7 depending on the actual percent of ethanol as it varies depending on the season. That number represents parts of air to one part fuel. If your pump and injectors can be increased and you can hit the afr you need you wouldn't need to change the pump or injectors. However, I'm also adding a turbo so I will have much more air entering the equation and therefore will also need to increase my fuel for this reason. Considering those factors I opted to upgrade both. I am also using this car as a way to learn more about these things so I wanted to do it anyways. I used to run e30 on the stock pump and injectors and it ran great. I didn't even tune it to run different at that point. I may not have answered your question relating to special pump or injectors for e85. I'd say no except you need them to be able to have sufficient flow for proper afr.
  14. The pump is back in the tiny tank. Time to hook the tank back up to the car.
  15. Possibly the first and only Walbro450 custom fitted Chevy Spark fuel pump set up. I decided to go minnow bucket style on the lower basket. MN custom touch.