Official NBS 4.3v6 to GEN 3 V8 swap Guide

[blacstar]

don't plug the sensor in. what is the picture for?

[BIG BLOCK 555]

this one i think it connect to some hose from fuel tank ??!!



it came with the engine when i bought it 4 months ago

from that time till now i have P0178 - Fuel Composition Sensor. Sensor Circuit Low Volts

sensor price is $647 i don't want to spend any money on this thing it's useless over here

[Frenchy]

Jesus Christ that's not a "Flex Fuel Sensor" it's the god damn EVAP solenoid. Instead of your gas tank venting to the atmosphere, it vents through that and the truck burns off the fumes. That's why it has a line to the tank.

[BIG BLOCK 555]

i didn't know that frenchy , where is Flex Fuel Sensor ?

[Frenchy]

99-02 trucks don't know what Flex Fuel is

[jelliott1458]

Hey guys. Just wondering, if I get a LY6 with the 4L80E, is it going to follow the same protocol as the Gen3 swap info here? Or are we digging up a whole new animal?

[blacstar]

what is it going in?

[jelliott1458]

2002 1500 4.3 60e sht bed std cab

[blacstar]

same. 4l80 will mount about 7 inches further back than that 60e. but that swap has been done many times before. You would follow the sticky and use a v8 harness for a 2002 truck and then conversion box 24x-58x

[3car]

I've read over this thread and didn't see my question addressed. My truck is a 2002 4.3 5 speed 4x4. I know I need a harness from a 99-02 v8 truck as well as a new fly wheel and clutch, but does the harness have to be from a manual trans truck to avoid other issues?