Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Drive by wire problem

Thread Tools
 
Search this Thread
 
Old Jan 1, 2017 | 02:29 PM
  #1  
Buick4ever's Avatar
Thread Starter
Teching In
 
Joined: Jan 2017
Posts: 5
Likes: 0
From: Galveston Texas
Default Drive by wire problem

Need help
Transplanted 2009 tbss 6.0 and 4l70e
Starts and runs fine put it in drive and only 20% throttle roll 20' stop for 10 seconds and full throttle shift out of drive or restart the car process needs to be repeated
HAd multiple tuners look at it and no clue affordable fuel injection made the harness so I'm not positive it's right (they aren't that sharp)
Reply
Old Jan 1, 2017 | 03:21 PM
  #2  
76larkman's Avatar
TECH Enthusiast
 
Joined: Sep 2014
Posts: 732
Likes: 1
From: alburnett, iowa
Default

good start would be to check connections and grounds. Can have extra grounds as never hurt anything. Pedal and everything from same donor?
Reply
Old Jan 1, 2017 | 03:51 PM
  #3  
Buick4ever's Avatar
Thread Starter
Teching In
 
Joined: Jan 2017
Posts: 5
Likes: 0
From: Galveston Texas
Default

I agree I have grounds on everything pedal and computers from donor looking at iss but it reads ok on
Reply
Old Jan 1, 2017 | 08:12 PM
  #4  
76larkman's Avatar
TECH Enthusiast
 
Joined: Sep 2014
Posts: 732
Likes: 1
From: alburnett, iowa
Default

I guess I would following wiring for any damage possible. If none call the company you got harness from. I did mine using Lt1Swap.com with good results.
Reply
Old Jan 2, 2017 | 08:16 AM
  #5  
Buick4ever's Avatar
Thread Starter
Teching In
 
Joined: Jan 2017
Posts: 5
Likes: 0
From: Galveston Texas
Default

I did and sent everything back to affordable fuel injection and it came back the same
i think I'll have to change the harness as the drive by wire is clearly above them
i would not recommend afi to anyone next to impossible to contact them and while the harness looks good it will not function
the fan controls don't work and many of the plugs where wrong
Reply
Old Jan 2, 2017 | 12:45 PM
  #6  
76larkman's Avatar
TECH Enthusiast
 
Joined: Sep 2014
Posts: 732
Likes: 1
From: alburnett, iowa
Default

Do you have the trailblazer wiring harness. I'm sure you can work it or get someone to. There a lot of info on the net. Facebook even has info.
Reply
Old Jan 3, 2017 | 02:21 PM
  #7  
CaptianChaos's Avatar
Teching In
 
Joined: Jan 2017
Posts: 10
Likes: 0
From: YUKON
Default

Originally Posted by Buick4ever
Need help
Transplanted 2009 tbss 6.0 and 4l70e
Starts and runs fine put it in drive and only 20% throttle roll 20' stop for 10 seconds and full throttle shift out of drive or restart the car process needs to be repeated
HAd multiple tuners look at it and no clue affordable fuel injection made the harness so I'm not positive it's right (they aren't that sharp)

I think this is a common E38 swap issue.. we dont have TAC modules its pretty much right to the TB from the pedal. I built my own harness, so its got to be programing related. i'm experiencing somthing similar. But i can go WOT, But if i punch it the pedal goes inop. Do you have your own tuner?
Try gettin all APP DTC's to error on first fail. Im gonna try that next to see if im getting bad reference voltage if not im gonna try messing with the torque management.
Reply
Old Jan 3, 2017 | 02:56 PM
  #8  
8.Lug's Avatar
TECH Enthusiast
 
Joined: Nov 2016
Posts: 711
Likes: 6
From: PNW
Default

If you had plugs wrong on the harness, I'd make sure it wasn't actually you that has improper components. Did everything in your swap come from the exact same vehicle? If you had to mix-n-match components from other vehicles, I guarantee that's where your problem is. So many people like to get an engine from here, a PCM from there, a pedal from somewhere else and then try to get a harness made that fits this cobbled-together mess but then get angry when nothing works right. The fact that you even had to get a harness and didn't have one in the first place - sounds like you're mixing-n-matching things.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jan 3, 2017 | 04:26 PM
  #9  
Buick4ever's Avatar
Thread Starter
Teching In
 
Joined: Jan 2017
Posts: 5
Likes: 0
From: Galveston Texas
Default

Everything is from the same donor vehicle
everything works perfectly once I come to a stop and drive for 10 seconds
i'm getting no error codes and the harness I had made was for the swap but I'm not sure if the people at affordable fuel injection got it right
Reply




All times are GMT -5. The time now is 06:59 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE