Are those spikes from clutch slip or what.

 

His rpm pickup wasn't working correctly. He didn't get the correct wire on the coil pack.

EDIT: If it was his clutch you'd see a drop in power as well.

 

What fittings did you use to connect the existing fuel line to the sensor/analyzer? It looks like the analyzer has the steel quick connect fittings, and I'm assuming the stock fuel line is that Teflon tubing... I ordered a similar kit from MAPerformance so I'm thinking about installing it tomorrow and I have a couple fittings but I'm just not sure the best route

 

i dont think that would work. Since fuel has to constantly run through the sensor to keep telling you what the e content is. If it was off where fifth injector taps into, and go into the sensor and come to a dead end, u would only get a reading of that fuel that is in the sensor, and it would not change cause the fuel cant flow anywhere so it just sits there

 

gotta bring this thread back from the dead since i plan on doing this to mine right now. question is, is the line the op used for the sensor the same line tom is talking about in his post about it not working right or is it another? seems like the op got it working nicely with the line he used.

 

Tom was talking about if you tee-d it inline with the 5th injector. If you place it how the OP has it where fuel is constantly flowing through you'll be fine.

 

The line that the OP tapped into is the feed line from the tank. It'll work and be fine.

With that said, I would personally not want to cut into the stock line to fit this. It can be fitted without cutting any lines.

 

perfect! thank you man

me neither. my plan is to measure out the line and buy 2 seperate ethanol friendly lines with the correct fittings on each end to attach everything nicely and tuck the sensor somewhere out of the way

 

My thought too. You could probably have it snapped in back by the fuel filter and be very out-of-the-way and easily return to stock.

 

The LNF doesn't have a fuel filter like the LSJ

 

Didn't know that. There should still be some connections around the back that could be utilized.

 

I havent been digging around back there, but there likely is one you could connect into by the tank discharge.

 

I just spliced mine into the fuel line right in front of the drivers door. Never an issue, other then the fact it sometimes wont work when it gets really cold. I used the Innovate gauge. Great gauge, but horrible customer service if you have any questions or issues

 

I understand the ease of looking at the gauge and seeing the E content of what is currently flowing through. What I don't understand why we really need this. If your running E47, don't you need to test the e85 before before you add the 93 too it make sure you are getting the proper mix? If you are testing it and mixing it properly doesn't that eliminate the need for the gauge? I feel like even if you are using full e85 it's probably best to test it before taking the risk and pumping a full tank of it straight in to the tank and risking it not being right. Now if we had some type of option of adding a flex fuel sensor that could adjust our tune in real time like a flex fuel vehicle, to the current blend of E mix, I could see where this would be useful.....

 

It's more of a confirmation and not having to test at the station. I ran e47 for awhile and only tested the first batch I mixed (pre-mix) and then just a 1:1 ratio e85 to pump from there on out. LTFT swayed +-4% but nothing dangerous in the LNF even through the winter mix, but the pump was also labelled e85 minimum 70% ethanol.

 

so my thought and reasoning for this is since i switch from 93 to E alot i like to know when one fuel has burned off and vice versa. since you never really completely empty the tank (without physically emptying it of course) theres always some left over fuel in the tank and lines and for me this sensor is just a way of letting me know when the old fuel has burned off and the proper fuel is finally flowing through. that way i stay off of it till its ready. if that makes any sense.

 

To me its just a lot easier to look at the gauge then to bust out the test tube. ratio's of 93/E85 to reach your target ratio. I got good at it towards the end but it was still precision guesswork. A friend of mine brought to my attention one time when we were testing at the pump as I was shaking the tube waiting for it to settle, he said "You do realize we look like we are doing a drug deal, right?"

 

haha yeah. i always think people are looking at me like holy crap this guys making a bomb!

 

I haven't used e47, so I don't really know. I just thought you would want to be more precise, then "precision guesswork." I mean it does seem like a PITA to test each time to, pull out a test kit, do the math, and go through the process. Is not that big of deal? Say you don't test the E and it turns out to be E-70 instead of E-85, and you fill 5 gallons e-70 and 5 gallons 93, yeah you see it on gauge, do you just add more E until it read right? Is that not like playing russian roulette with your engine? E content not being high enough would leave the lean correct? or is it really not that big of a deal?

 

On the LNF it has a wideband so it adjusts for the difference in fuel, from a timing standpoint there isn't a significant difference in e47 and e85. Really even just running e30 will get most to 20*, I ran e47 mixing e85 & regular (85 octane here in Denver, but 87 elsewhere) running 20* of timing at full load 6500rpm and had zero KR. I honestly think mixing e85 and premium is a waste for most on the LNF. LSJ different story haven't had the ability to play around with on from a tuning standpoint much.

 

Ohh havent heard anyone running e47 like that. Thats interesting to be honest and cheaper lol

 

E47 is a good blend. More power than pump and you still get halfway decent gas mileage. If you daily your car on actual e85, just expect to fill your tank every couple days. It turns into a pain. I know, which is why I dont do it haha.

 

anyone know the part number for the fuel feed line the op used for the sensor? i think its 22912576 but everywhere i look it says "it doesnt fit cobalt"

looks just like it though but i wanna make sure

 

That part number shows as being for the 2013/2014 Camaro SS/ZL1. As long as the fittings are the same size though, it should work. I believe GM uses two different fuel line/fitting sizes: 3/8" and 5/16".

Some light googling says that GM uses 3/8 for feeds and 5/16 for returns.

 

yep its 3/8. i figured it all out and went with some 6AN braided line. much nicer end product than cutting into the stock stuff