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Flex fuel kit

lapoolboy

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JONBLARC7 Enthusiast

JONBLARC7

Posted
Posted

There is enough room where the line makes a 90 at the quick release fit to fit the sensor and the fittings.  That’s exactly the way I have mine.  If you look at the thread I posted I put some picture of mine installed.  The flexible line has enough slack in it to work fine.  You just need to pull it out of the clip on top of the tank.

lapoolboy Senior Enthusiast

lapoolboy

Posted
  • Author
Posted
4 minutes ago, JONBLARC7 said:

There is enough room where the line makes a 90 at the quick release fit to fit the sensor and the fittings.  That’s exactly the way I have mine.  If you look at the thread I posted I put some picture of mine installed.  The flexible line has enough slack in it to work fine.  You just need to pull it out of the clip on top of the tank.

Yes, I saw your pictures.  I just want everything contained within the area on top of the tank.

Nasty Senior Enthusiast

Nasty

Posted
Posted

So I emailed dsx.  I asked about their kit like in the first post.  They said it connects in the fuel near the high pressure pump near the engine bay.  How hard is that to get to? I have yet to do any motor work on this truck

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

The high pressure pump is on the back side of the engine by the firewall.

 

The fuel feed line is over the drivers side valve cover.

 

001-LT1-Direct-Injection-Fuel-System-Ins

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

The trucks already have the harness way down by the ABS pump for the sensor, so I'd use that instead of his mini harness. It would just take one hell of a wiring extension or adding wires yourself to reach the engine bay.

Nasty Senior Enthusiast

Nasty

Posted
Posted
29 minutes ago, CamGTP said:

The high pressure pump is on the back side of the engine by the firewall.

 

The fuel feed line is over the drivers side valve cover.

 

001-LT1-Direct-Injection-Fuel-System-Ins

I get it  when I read it takes under 30 minutes  I was like what the hell. But if that fuel line is easily accessible then I understand. This kit seems like it would work.  I just dont know where the plug is for the sensor

  • 2 weeks later...
Gagliano7 Enthusiast

Gagliano7

Posted
Posted
On ‎7‎/‎30‎/‎2019 at 12:48 AM, Nasty said:

I get it  when I read it takes under 30 minutes  I was like what the hell. But if that fuel line is easily accessible then I understand. This kit seems like it would work.  I just dont know where the plug is for the sensor

The plug is near the frame rail drivers side about where the back door on the dbl cab. It is plugged into a dummy connector to keep water out of connector.

 

Gagliano7 Enthusiast

Gagliano7

Posted
Posted
On ‎7‎/‎29‎/‎2019 at 9:20 PM, lapoolboy said:

Ok, obviously a very crude drawing on my phone, but I think I've got a plan.  I'm going to disconnect the nylon line elbow coming from the fuel pump at the hard line.  Then the sensor will go into that elbow.  Then a quick-connect 90 deg. elbow on the other side of sensor, a short section on nylon tubing, and another elbow to connect back to the hard line.  The two elbows (at each end of the blue line) will point toward the back of the truck.  Then the short section of nylon tubing can just loop around on top of the tank to connect the two elbows.  I also have a harness extension coming too so I won't have to cut & splice anything.  Looking forward to trying some E-85.

273172518.png

Where did you get the harness extension?

  • 6 months later...
SlowGMC Enthusiast

SlowGMC

Posted
Posted

I know this thread is old but just wanted to update it in reference to dsx flex fuel kit.

 I just installed their kit.  It was more like an hour to do.  The biggest hassle was running the flex fuel wire to the ecm  and pinning it into the correct spot. If I had to do it again I would of just installed the sensor under the bed of the truck where the flex fuel harness is at. 

TJay74 Senior Enthusiast

TJay74

Posted
Posted

I have the CJ tuners kit on my 16 6.2 because the e85 was not turned on in my ECM and at the time no one had found a cheaper way to do it. it took me about 45 minutes from start to finish to cut, plumb and wire in the E85 kit. I already have HP Tuners as well, so I turned the flex fuel on in the tune. All of the tables were already populated so I compared them to my 17 Camaro SS and made some slight adjustments.

 

As someone who has a Procharger D1SC on my 17 Camaro SS with the full LT4 fuel system from the gas tank to the engine (injectors, fuel rails, HPFP) I can say this, you are going to have a hard time running E85 with the trucks fuel system. You really need the LT4 fuel lines for the engine, injectors, HPFP and some sort of higher volume fuel pump in the gas tank to be able to run E85. Even then you may only be able to run around E40 or so.

CamGTP Senior Enthusiast

CamGTP

Posted
Posted

If the engine is stock, you should be fine.

 

I'm somewhat close to my injector limits on E70-80 which is the best I can do around here in the summer. I can likely trim some fuel from WOT to gain back some room as well but haven't gone over it again with my wideband. And it's not a huge concern as I know I won't run out of room.

 

The pump and lines are fine but if I wanted more power with E70+ then I'd need/want LT4 injectors to know I have the room.

 

If the stock in tank pump can support a TVS blower install on a 6.2, it can support a NA 6.2 on E85 even with some other mods.

TJay74 Senior Enthusiast

TJay74

Posted
Posted
21 hours ago, CamGTP said:

If the engine is stock, you should be fine.

 

I'm somewhat close to my injector limits on E70-80 which is the best I can do around here in the summer. I can likely trim some fuel from WOT to gain back some room as well but haven't gone over it again with my wideband. And it's not a huge concern as I know I won't run out of room.

 

The pump and lines are fine but if I wanted more power with E70+ then I'd need/want LT4 injectors to know I have the room.

 

If the stock in tank pump can support a TVS blower install on a 6.2, it can support a NA 6.2 on E85 even with some other mods.

 

my comment is more geared towards those who want to run E85 with a blower on the trucks. The trucks stock pumps and injectors should be able to handle a normal bolt on E85, now if someone builds a engine and wants to go E85 they may run into some headroom issues on that route.

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