84 K10 5.3 Vortec 4l60e swap help..pointers

[84Silverado4x4]

Does anyone know the best way to pull vacuum on my 06 5.3.  It doesn't look like my intake supported a port in back for power brakes.  It must have had hyrdroboost.  Can I use the evap purge valve line coming off the solenoid up front by the throttle body?  Will it support enough vacuum?  I also need vacuum for my heater control valve inside...could I tea that in also?

[Captkaos]

Back of the intake is a plug.  Just run to the dealership and tell them you need the fitting for the booster hose that goes in the intake.  I did this to my R10.. It came out of a 1T with Hydroboost.

[84Silverado4x4]

I got that fitting part figured out.. is that the only part I need..just the barb fitting in place of the plug?  Also what do I need to do with the EVAP purge valve line?

[Captkaos]

That is all you need just hook your booster line to it.
I block off the EVAP.  of course I put an IAT sensor in mine...

[84Silverado4x4]

Does anyone have a good idea for a wiring guide for the wiring in my 84 chevy...I need to know what wires do what to tap into with the wiring from the 5.3 harness.  I would like to tie into the A/C, cruise, and some others.  Of course as many of these trucks have been tinkered with over the years some of the wires are no longer being used and just laying in the fender wells.

[bd]

Use the 1983 Wiring Manual and the 1984 Custom Cruise III Manual.

[84Silverado4x4]

I will try and sort through some of those...it looks like fun!...lol...just incase someone can point me in the right direction quickly I will ask about the ones I need.  Looking for the cruise wires...I have them located on my 5.3 ls harness but not sure which ones are which under the hood..or what the connector looks like.  I also was wondering about the neutral safety switch and the reverse light wires from my 700r4 trans harness...what wires are what and needed?  And the last thing is what wires go to where for my 87 r/v efi sending unit.  I have a gray, purple, and black wire coming off it and I can assume that black would be ground.  Which wire goes to my fuel gauge and what wire is the pump power?

[84Silverado4x4]

I have my truck up and running however I am sorting out a few issues.  I wasn't able to install the trans adapt reluctor ring for the VSS signal in my 4l60e because the output shaft is different than the 700r4 and I wasn't able to mount it.   I am pulling my speedometer input off the np208 transfer case for the dakota digital vhx gauges with the dakota SEN-01-128 sender.  Would I be able to pull my VSS signal for my ecm with that sender also?  I am also getting a check engine light with no codes that interrupts my throttle.  I have drive by wire.....and as soon as I clear codes the throttle works but quickly throws the check engine light on and my throttle quits again.  Any ideas what would be going on there?

[Irish_Alley]

I kind of hope you can use the Dakota sensor for the ecm I know you can for the tcus from tci. I have another TCU from a 91 6.5 so it also needs a signal but haven't really looked on what it would need to work

[84Silverado4x4]

After a few different senders 16K ppm, that comes with the dakota digital gauges. a 128k ppm, and an 8k ppm, the only one that would register speed on the scanner and allow the transmission to shift was the 8k ppm sender.  However the shift is really late and only registers a few mph on a obd2 scanner.  Does this sound right?  Does the rest need to be in the tune to get it closer and so it will want to shift before 4k rpm?

[Irish_Alley]

i know with my digital dash, i have to be going something like 5 mph for it to even start suggesting a speed. idk if thats your problem or not. whats the speed the trans is shifting at?

[84Silverado4x4]

I got it to shift with the 128k ppm generator sender today.  The problem I was having before is that I was tapping into my speedometer sender for the vss signal and the sender gets a 5 volt power normally from the dakota digital control box for the 16K ppm sender originally for the gauges.  The 128k ppm generator needed 12V to function properly and I will now have to get my speedometer signal from my ls computer.  It was a lot of messing around but it does shift now.  The dakota digital gauge should pick up the vss signal out from the computer no problem.  Now If I can get the check engine light that keeps coming on figured out so it stops cutting out my dbw throttle I should be set.

[Irish_Alley]

so you where tapping into the 16k (dakota) sensor for your tcu?

 and it wont work in that order?

you have to get the 128k for the tcu then tap into the ecu for the dakota dash ?

[84Silverado4x4]

Correct....the 16k sender would only work for the speedo....the computer never registered anything.  I am now using the 128K sender for the computer and using the speedo wire out of the computer to run my dakota digital speedo.

[84Silverado4x4]

The truck is up running and driving ...just a few things to work out and it should be good to go.  A little tip for anyone doing one of these drive by wire ls swaps........  The computer and throttle pedal assembly including the TAC module had been changed in 2006 and these parts are not compatible with previous model years.  You will have problems with the throttle not working and a check engine light will come on with a code.  I had a 2006 throttle assembly and a 2005 PCM and my throttle would not function.  I was able to re program the PCM with 2006 PCM programming and everything works as it should.  The computer are the same but the programing is different in these years so to save you money make sure all the year items match up.  I had the computer tuned the first time to the 05 version for $150 and then had to retune it to a 2006 and it cost me an additional 2 credits..($100).