Flex fuel bypass

[cody08]

I'm getting the code for the flex fuel sensor and have seen a few companies who make a bypass sensor for this. Is there a specific company out there you guys recommend?

 

[M1Gunner]

It’s just measures the ethanol content of the fuel. If you have access to a scan to tool with the capabilities you can recalibrate it. Simple as that.

If you’re near the Gainesville Florida area I can do it for you.

 

[cody08]

I am in KS or I would take you up on that. Does it have to be the dealer one or will like a Matco one work?

 

[M1Gunner]

Doesn’t have to be the dealer. I have a Matco Maximus2.0 and it has the capabilities to get the job done.

 

[cody08]

I believe that's what we have at the shop as well, I'll have to look tomorrow. Is there a video or walk through somewhere online?

 

[shreksbrother]

Oh man, I wish I knew that it could have been recalibrated. I dropped some coin on this:

http://www.pointaengineering.com/Fl...for-GM-GMC-Products-CLICK-FOR-INFO-000001.htm

Which I must admit knocked out the light and smoothed out the engine perfectly in 5 minutes.

 

[iamdub]

Oh man, I wish I knew that it could have been recalibrated. I dropped some coin on this:

http://www.pointaengineering.com/Fl...for-GM-GMC-Products-CLICK-FOR-INFO-000001.htm

Which I must admit knocked out the light and smoothed out the engine perfectly in 5 minutes.

Mine's a Flexfuel and I have no problems with it, AFAIK. I do have a random slightly rough idle, though. I don't use E85 and I can't say for sure if I've ever even seen E85 pumps in my area. E0 or E10 is the norm and max at every pump I've been to. I average 16.xx MPG combined city/highway which I thought was about as good as it could get. Could this replicator improve MPG beyond that? Smoothing out the idle would be a bonus. But I just chalked that up to it having 185K miles and maybe some internal carbon buildup causing it.

 

[shreksbrother]

Mine's a Flexfuel and I have no problems with it, AFAIK. I do have a random slightly rough idle, though. I don't use E85 and I can't say for sure if I've ever even seen E85 pumps in my area. E0 or E10 is the norm and max at every pump I've been to. I average 16.xx MPG combined city/highway which I thought was about as good as it could get. Could this replicator improve MPG beyond that? Smoothing out the idle would be a bonus. But I just chalked that up to it having 185K miles and maybe some internal carbon buildup causing it.

Not sure about the NNBS, but the NBS flex fuel vehicles have a sensor that is crazy expensive (it senses when there is E85 flowing). When the sensor goes out, it can fail to always think there is E85 in the tank. The result is a poorly-running vehicle and a check engine light. This device tells the computer that there is regular gasoline in the vehicle no matter what... It is not advised to run E85 with this device connected (who runs it, anyway?!?!).

I don't think this would help get you 'even better' mileage.

 

[shreksbrother]

Mine's a Flexfuel and I have no problems with it, AFAIK. I do have a random slightly rough idle, though. I don't use E85 and I can't say for sure if I've ever even seen E85 pumps in my area. E0 or E10 is the norm and max at every pump I've been to. I average 16.xx MPG combined city/highway which I thought was about as good as it could get. Could this replicator improve MPG beyond that? Smoothing out the idle would be a bonus. But I just chalked that up to it having 185K miles and maybe some internal carbon buildup causing it.

One other thing... Change your plugs if you haven't recently. And while they're out, use one of those USB endoscopes to look at the inside of the cylinder to be sure there isn't a lot of buildup.

 

[iamdub]

Not sure about the NNBS, but the NBS flex fuel vehicles have a sensor that is crazy expensive (it senses when there is E85 flowing). When the sensor goes out, it can fail to always think there is E85 in the tank. The result is a poorly-running vehicle and a check engine light. This device tells the computer that there is regular gasoline in the vehicle no matter what... It is not advised to run E85 with this device connected (who runs it, anyway?!?!).

I don't think this would help get you 'even better' mileage.

Yeah, I didn't think you stumbled upon a way to improve MPG with a simple plug-in device. So, those getting better MPG had lost MPG due to a failure in the system and this device simply fixed that and restored the MPG they had lost. Thanks for the explanation.

One other thing... Change your plugs if you haven't recently. And while they're out, use one of those USB endoscopes to look at the inside of the cylinder to be sure there isn't a lot of buildup.

I've pulled a plug from each bank and they looked and measured out fine. I may still change them just cuz. I have a crappy borescope that I stuck down in there. The resolution sucked, but I didn't like what I could see. It may actually not be so bad or it could be worse. I'll try lighting it up better in there next time to get a better view. In the meantime, I'm gonna research this "USB endoscope"...


Thanks for the input.

 

[shreksbrother]

In the meantime, I'm gonna research this "USB endoscope"...


Thanks for the input.

Here's what I have... It has LED lights at the end, so it is easy to see in there:

http://a.co/hqoQmK5

 

[iamdub]

Here's what I have... It has LED lights at the end, so it is easy to see in there:

http://a.co/hqoQmK5

Cool! It looks like lack of lighting is my current camera's problem, but I'm liking the idea of this style. Any chance you can post a pic of how it looks on screen? Maybe post a screenshot of your phone? You don't have to pull a plug to get a combustion chamber image, but maybe a similar setting, like down inside a dash A/C vent or under a seat, would be nice.

 

[cody08]

I have done a tune up in the last few months, so I don't think that's it. I guess I'll have to try the bypass.

 

[shreksbrother]

Cool! It looks like lack of lighting is my current camera's problem, but I'm liking the idea of this style. Any chance you can post a pic of how it looks on screen? Maybe post a screenshot of your phone? You don't have to pull a plug to get a combustion chamber image, but maybe a similar setting, like down inside a dash A/C vent or under a seat, would be nice.

Sorry, I kept forgetting to do this. It's not very exciting, but here it is shoved down the AC vent. The picture is quite amazing, and the light makes it especially useful. I also like the hook and magnet attachments... They make grabbing a socket that slipped into the depths really easy.

 

[iamdub]

Sorry, I kept forgetting to do this. It's not very exciting, but here it is shoved down the AC vent. The picture is quite amazing, and the light makes it especially useful. I also like the hook and magnet attachments... They make grabbing a socket that slipped into the depths really easy.

View attachment 188303

Thanks! That's plenty of resolution for what I need. It's a definite win at that price.