OBS to LSx conversion

[Chevy-Art]

Question, I have a 04 5.3L in my 93 and its still DBW, anyone know if this would be the same for cruise on it or how would that work?

Look here, this might help you out.
http://www.ls1truck.com/forums/lsx-t...bs-z-71-a.html

[Clayman]

[QUOTE=RedHeartbeat;131558]This is a post from my first conversion that may help you figure out your stock harness should you attempt to use it. It is not 100% accurate so double check everything and if you find something that doesn't jive, be sure to post it here and we'll update it.

1993 OBS Speedometer and Cruise Control wiring
I've been running around with no cruise for the longest time so I thought I'd get around to fixing it. The answer was very simple with help from GasGuzzler. Remove the white DRAC box behind the glove box and pitch it in the corner. Cut the light blue wire with black stripe. Cut the red wire with white stripe. Take a butt connector and stick the two wires in one end and crimp. Take the speedometer signal wire from the PCM and crimp it to the other end. Job done.
BTW, the cruise control cable I used is from a 1998 C1500 with a Vortech V8.

Does this wiring work for an electronic throttle body? Or is there something different that has to be done?

[altereddezignz]

Did you have to relocate the ac compressor? I am using a lq4 and looking at kits to move the alternator and the ac compressor and use a r4 or sarten compressor.

[hellfire_studios]

Is there any easier way to make it work? What did you do to get your wiring done?

[RedHeartbeat]

You can send it to NelsonPerformance and have them mod it for you or buy one of their 4 wire harnesses complete. You hook up power, switched power, ground and speedometer output and you're ready to rock and roll. I can't remember the pricing, PM Mellissa@Nelsonperformance and she'll answer that one. There not too much to making the stock harness work, just get a factory wiring diagram from the harness model you have and figure out what everything goes to. Grounds are very easy to distinguish, black with ring connecters to go under bolt heads. Powers are orange, switched power is pink, wire in the dark blue and dark green leads to relays to control the fans(the wires output a ground signal for the relay). The green/white wire is the speedometer. The white wire is the tachometer signal.

[Wtfan18]

You can send it to NelsonPerformance and have them mod it for you or buy one of their 4 wire harnesses complete. You hook up power, switched power, ground and speedometer output and you're ready to rock and roll. I can't remember the pricing, PM Mellissa@Nelsonperformance and she'll answer that one. There not too much to making the stock harness work, just get a factory wiring diagram from the harness model you have and figure out what everything goes to. Grounds are very easy to distinguish, black with ring connecters to go under bolt heads. Powers are orange, switched power is pink, wire in the dark blue and dark green leads to relays to control the fans(the wires output a ground signal for the relay). The green/white wire is the speedometer. The white wire is the tachometer signal.

its $450 to have your harness reworked from Nelson Performance which is the route im going. much easier for me to hook up 4 than connect wires that dont belong etc. or they can make you a whole new one for $650 i believe. Either way it will save you a lot of headaches and time. IMO sounds pretty simple to install as well.

[98 4X4 burban]

its $450 to have your harness reworked from Nelson Performance which is the route im going. much easier for me to hook up 4 than connect wires that dont belong etc. or they can make you a whole new one for $650 i believe. Either way it will save you a lot of headaches and time. IMO sounds pretty simple to install as well.

if i had to do it all over again i would have gone this route and let then re work my harness

[locrzn]

Blake from 417 motorsports in springfield,mo is going to do the install. He builds his own harness. I'm just taking everything I have to him. You have given everyone on this forum a lot of valuable info. I thank you and from the reponses I see everyone else does also.

[hellfire_studios]

I have the harness for the 5.3 and the ecu I just want to make sure that I understand as I know nothing about wiring. we are talking about the 5.3 harness when you are talking about reworking it. Does the nelson performance people chip ecms as well? And with this rework I can use the factory cluster?

Josh

[RedHeartbeat]

NP will flash a PCM to work for your application. Yes, they can rework your wiring harness to work in your vehicle. BTW, what is your vehicle since you don't have it listed in your signature/usercp.