GM 13577429, correct code for Gen V flex fuel sensor?

[crafferty]

Just as the title says is GM 13577429 the correct part number for the flex fuel sensor used in the 2014+ 4.3 (LV3) and 5.3 (L83) engines? Thanks in advance for the help.

[iCryWheniGoPoop]

That's the one I ordered and have sitting in my toolbox but I haven't installed yet so can't "verify" it works.

 

I believe Higgs has installed one and may be able to chime in or you can PM him

 

 

Sent from Off Driller Side

[Rawyzf]

My tuner, whom I haven't visited yet with this truck, said he can covert me to flex with a sensor swap.

 

I think I'm gonna go for it, as I want to tune out 4cyl mode anyway.

 

Sent from Tapatalk App - Samsung S6

[iCryWheniGoPoop]

My tuner, whom I haven't visited yet with this truck, said he can covert me to flex with a sensor swap.

 

I think I'm gonna go for it, as I want to tune out 4cyl mode anyway.

 

Sent from Tapatalk App - Samsung S6

That is correct.

 

 

Sent from Off Driller Side

[crafferty]

That's the one I ordered and have sitting in my toolbox but I haven't installed yet so can't "verify" it works.

I believe Higgs has installed one and may be able to chime in or you can PM him

 

 

Sent from Off Driller Side

Great, I figured it was the correct sensor but whenever I google the damn thing it keeps saying 2012-2013 Impala. I would PM Higgs but I believe he tuned his without the use of the sensor. I actually just signed up for a BlackBear Performance tuning session when they come to Atlanta in October this fall. Pretty excited to finally get my truck tuned and excited to see the dyno numbers for E85 and 93 compared to stock (350/380).

 

My tuner, whom I haven't visited yet with this truck, said he can covert me to flex with a sensor swap.

 

I think I'm gonna go for it, as I want to tune out 4cyl mode anyway.

 

Sent from Tapatalk App - Samsung S6

You actually do not need the sensor to run E85 but if you have the sensor then you can actually switch between the fuels without changing tunes. That's the biggest reason why I would like the sensor since E85 isn't the easiest to find around me sometimes.

[Rawyzf]

 

You actually do not need the sensor to run E85 but if you have the sensor then you can actually switch between the fuels without changing tunes. That's the biggest reason why I would like the sensor since E85 isn't the easiest to find around me sometimes.

 

Ah, didn't know you could run e85 on tune only and not need the updated sensor, thank you!

 

However, I will probably play it safe and swap the sensor so I can run either/or and not worry about it.

[crafferty]

 

Ah, didn't know you could run e85 on tune only and not need the updated sensor, thank you!

 

However, I will probably play it safe and swap the sensor so I can run either/or and not worry about it.

Yeah I mean for $60 shipped why not run the sensor.

[Rawyzf]

Yeah I mean for $60 shipped why not run the sensor.

 

Exactly!

[crafferty]

 

Exactly!

Well I just went ahead and purchase my sensor off Amazon for a whooping total of $13.52 shipped to my door. Turns out someone had it on sale for $50 shipped and I had $37 in amazon credits on my account. Not a bad score if I must say so myself.

[Rawyzf]

Well I just went ahead and purchase my sensor off Amazon for a whooping total of $13.52 shipped to my door. Turns out someone had it on sale for $50 shipped and I had $37 in amazon credits on my account. Not a bad score if I must say so myself.

 

Can you link me to it. I think I have some credit to burn there too ;).

[crafferty]

 

Can you link me to it. I think I have some credit to burn there too ;).

I ended up buying the only one they had in stock. But another company has it for $59.99 on amazon with free shipping.

[Rawyzf]

Bugger, I only have 8.22 in credits

[Lawnmower2020]

Just curious: is the only difference between flex and non-flex the sensor, wiring, and some programming? All trucks get the same tank hardware and plumbing, for instance?

 

Reason I'm asking is that I've had to replace an inordinate number of in-tank fuel pumps and level sensors on some older vehicles due, according to the various shops, the adverse effects of alcohol on equipment that wasn't designed appropriately for it. I'm assuming then that those parts on our trucks are designed for use with E85 which ought to make them well tolerant of E10.

[iCryWheniGoPoop]

Just curious: is the only difference between flex and non-flex the sensor, wiring, and some programming? All trucks get the same tank hardware and plumbing, for instance?

 

Reason I'm asking is that I've had to replace an inordinate number of in-tank fuel pumps and level sensors on some older vehicles due, according to the various shops, the adverse effects of alcohol on equipment that wasn't designed appropriately for it. I'm assuming then that those parts on our trucks are designed for use with E85 which ought to make them well tolerant of E10.

 

With just about everyone serving E10 now I think manufacturers have pretty much adjusted their seals, lines and hardware to handle the change. That's really not an issue though since these trucks are E85 capable anyway and I can't imagine different pumps, hardware and lines being in each. That's pure speculation though, checking part numbers would be only way to verify

 

 

 

Wiring these things up is the only reason I haven't done it yet. I need to find a pigtail that fits the sensor.

 

 

Sent from Off Driller Side

[crafferty]

With just about everyone serving E10 now I think manufacturers have pretty much adjusted their seals, lines and hardware to handle the change. That's really not an issue though since these trucks are E85 capable anyway and I can't imagine different pumps, hardware and lines being in each. That's pure speculation though, checking part numbers would be only way to verify

 

 

 

Wiring these things up is the only reason I haven't done it yet. I need to find a pigtail that fits the sensor.

 

 

Sent from Off Driller Side

Shoot I was under the impression the flex fuel sensor was plug and play. I had read there is already a connector hanging out down there but it has a cover on it. I just have to check out a L83 with flex fuel and see what they are using to connect the fuel lines.