5.3 harness question

[slamed67]

http://www.lt1swap.com/vortec_truck_pinouts/1999.htm

my question is about E2 a pink wire on the underhood fuse block "transmission pcm" what do i do with this wire? ill read deeper but i think im not getting something.

[chevybuilder18]

Originally Posted by slamed67

http://www.lt1swap.com/vortec_truck_pinouts/1999.htm

my question is about E2 a pink wire on the underhood fuse block "transmission pcm" what do i do with this wire? ill read deeper but i think im not getting something.

im thinking its a wire running straight from the pcm, and is fuseable to your E3 neutral safety switch and or E1, makes since because you cant pull off with out direct orders from a computer telling the neutral saftey switch is on huh? just my 2 cents. idk if it this is right, cause im a newb. thanks for the link!

[slamed67]

found this.. "In addition to those connections, you need to connect C100 pin C, Pink, to 12v+ RUN/START source. This wire feeds the Transmission Solenoids and PCM. The fuse for this wire is NOT in the underhood fuse block. The fuse was located in the underdash fuseblock in the 99+ pickups. You need to use a 10A fuse for this wire and hook to a RUN/START 12v+ source. This wire runs from C100 Pin C to Underhood Fuseblock C2 - E2. Inside the fuse block, it turns around and comes back out on C2 - F2. F2 then runs to the PCM and Transmission."

http://www.lt1swap.com/underhoodfuseblock.htm

still trying to wrap my brain around this

[slamed67]

since im not using the under the hood fuseblock.. im building this one..

http://www.lt1swap.com/fuseblock_obd2port.html

running F2 in my 12v+ KEY HOT fuses, eliminates the need for E2.. please correct me if im wrong

[chevybuilder18]

very intresting stuff. im gonna make this page a favorite in my favorites bar, that way i can look at it later. im sorry i cant give you any info, but your threads teaching me as well. im sure some other threads are very resoursefull, but since you point out the odd ball things, i think this is important and should be looked at.

[Dustytrix]

you are correct f2 and e2 is really the same wire, just get 12v switched power to f2. If you notice the are both labeled with the same circuit number.