Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

just removed my lt4, back in goes my old 305

Thread Tools
 
Search this Thread
 
Old Jan 4, 2003 | 07:32 PM
  #1  
topher's Avatar
Thread Starter
Junior Member
 
Joined: Aug 2002
Posts: 60
Likes: 0
From: new jersey
just removed my lt4, back in goes my old 305

well i'm fed up with the idea of ever tryin to finish this project, i got close but not close enough, i refuse to pay all that money to purchase lt1.edit software and cable for obd2 type pcm, just to do propertuning and removing the vats, its nice to know that i wasted alot of time and money on something that i'll never get to drive, well the lt4 and t56 make a nice garage orniment, oh well should of bought a lt1 prior to 96 out of a camaro instead of the so called easy fix of a lt4 only because the accesories were on the driver side. this **** sucks
5700 wasted in faith of having a hot rod

may *** help those that try to do this swap
Old Jan 4, 2003 | 08:37 PM
  #2  
rezinn's Avatar
Supreme Member
 
Joined: Dec 2000
Posts: 3,813
Likes: 2
From: California
Research? What's that?

Sorry to hear that, maybe you can find someone with lt1 edit to help you out?
Old Jan 4, 2003 | 09:59 PM
  #3  
Z28ricer's Avatar
Supreme Member
iTrader: (2)
 
Joined: Jan 2001
Posts: 4,149
Likes: 3
From: Tampa, FL, USA
Car: 93 240SX
Engine: LQ9
Transmission: T56
Axle/Gears: 3.54 R200 IRS
Why not just research the OBD II to obdI swap, most f body ppl can swap to the other computer by just changing a knock sensor and a few small other changes, or get an OBD I harness and pcm with the vats module, sell your LT4 stuff, then get the obd I LT1edit.
Old Jan 5, 2003 | 06:32 PM
  #4  
84CamroHO's Avatar
Member
 
Joined: Feb 2002
Posts: 153
Likes: 0
From: Durham NH
i think you can by the painless vats bypass module and install it, that should remove the vats. The packet that I have said it will eben remove the vats on 98-02 LS1's and that is OBDII so look into that just before you quit
Old Jan 5, 2003 | 08:14 PM
  #5  
HybridZ28's Avatar
Junior Member
 
Joined: Oct 2002
Posts: 72
Likes: 0
From: Felton,Delaware
Dood ..

Don't give up.. its well worth the money and time it takes to get things done correctly.
Old Jan 5, 2003 | 09:25 PM
  #6  
mat89RS's Avatar
Senior Member
 
Joined: Apr 2001
Posts: 884
Likes: 2
From: Québec
Engine: LT1
Transmission: 700r4
Sorry for my comments but I found that pretty retard that you bought an LT4 for 5700$$$ and that you're giving it up for an 8 wire module .

Ask us any questions you would like and we will answer you and we will solve your problems .


If you were able to spend 5700, why not buy a 120$ module and plug it correctly ?
Old Jan 5, 2003 | 09:53 PM
  #7  
wm_sorg's Avatar
Senior Member
 
Joined: Dec 1999
Posts: 954
Likes: 1
From: Annandale, VA
Car: 1991 Formula Firebird
Engine: 2001 LS1 Modded
Transmission: 2001 4L60E Yank SS3600 TC
Hang in there. I understand your frustration. My three week LS1 swap is going on four months. There are always set backs. Believe me. I have had my share and am not giving up.

You can buy a VATS simulation module or have your PCM professionally reprogramed.

The LT4 produces awesome power and will be well worth the effort in the long run.
Old Jan 6, 2003 | 12:27 AM
  #8  
sinner's Avatar
Member
 
Joined: Jun 2000
Posts: 312
Likes: 0
From: umatilla county, or.
Car: 1992 Camaro Z28
Engine: 1995 Camaro LT1
Transmission: 700R4
yeah man, dont give up. im not doing such a tough swap, 95 LT1 in a 92, and my car has been dpwn since august. good things come to those who wait. ive spent as much as you and im not giving up, i just get help. youll get there.
Old Jan 6, 2003 | 08:43 AM
  #9  
84TAProject's Avatar
Senior Member
 
Joined: Dec 2001
Posts: 637
Likes: 0
From: Connecticut
They make an intake for a carb for the LT4, why not get that, go carbed and ignore all that computer stuff?
Old Jan 6, 2003 | 10:22 AM
  #10  
Brett's Avatar
Member
 
Joined: Jul 1999
Posts: 130
Likes: 0
From: Ct
GMPP no longer produces the LT4 carb intake.

Solutions to the LT4 programming problems....

1) find someone with a business version of LT1 Edit who can help you out

2) talk to Cartek

3) borrow someone else's LT1 Edit wire for an afternoon and buy your own base version of LT1 Edit

4) Tunercat

5) VATS defeat module

6) go to Radioshack and buy one resistor of every rating.... probably run you $20 or less. Test each one until you find the one that works for your VATS coding...... that's basically what the VATS defeat module is/does. Its a box w/ various resistors in it.

7) get OBD-I wiring+PCM

8) get Painless Wiring kit

9) fire it up and drive it hard!!!!!
Old Jan 6, 2003 | 12:00 PM
  #11  
mat89RS's Avatar
Senior Member
 
Joined: Apr 2001
Posts: 884
Likes: 2
From: Québec
Engine: LT1
Transmission: 700r4
This may or may not Help you

Passkey II
VATS 16 pin
|------------------------|
A8| [] [] [] [] [] [] [] []| A1
B8| [] [] [] [] [] [] [] []| B1
|------------------------|

Slot Wire Color Description
A1 Orn Power feed from ECM BAT fuse #4
A2 Pnk Power feed from ECM IGN fuse #5
A3 DK BLU Fuel enable signal
A4 YEL/BLK Starter enable relay control
A5 GRY "Security" indicator lamp control
B5 BLK/WHT Ground
B7 PPL/WHT Ignition key resistor return
B8 WHT/BLK Ignition key resistor feed

Last edited by madmax; Jan 7, 2003 at 03:13 PM.
Old Jan 6, 2003 | 12:41 PM
  #12  
mat89RS's Avatar
Senior Member
 
Joined: Apr 2001
Posts: 884
Likes: 2
From: Québec
Engine: LT1
Transmission: 700r4
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1876373558


voila, 50$, 3 hours left !
Old Jan 7, 2003 | 08:16 AM
  #13  
vwdave's Avatar
Supreme Member
 
Joined: Feb 2002
Posts: 1,843
Likes: 0
From: miami, florida
Dont give up. The way you got to look at it, is by working on one thing till it gets done. Dont try to outthink jobs. If you do, they will beat you everytime.

One more piece of advice. Do it right the first time, or do it wrong 5 times. Its better to pay more for parts that makes life easy.
Old Jan 7, 2003 | 03:15 PM
  #14  
Guest
Guest
 
Posts: n/a
I edited a post above, with the VATS info. Lets not put it back, its easy enough for people to steal our cars without giving them a helping hand.
Old Jan 7, 2003 | 04:55 PM
  #15  
mat89RS's Avatar
Senior Member
 
Joined: Apr 2001
Posts: 884
Likes: 2
From: Québec
Engine: LT1
Transmission: 700r4
It's easy enough to buy a service manual and to get the values, I would not see anybody with 2 hours on their hand and 13 resistors to to try that.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Fast355
DFI and ECM
14
Dec 2, 2016 06:33 PM
bbsr72
Brakes
0
Aug 12, 2015 10:44 AM
marcusaw
DFI and ECM
4
Aug 10, 2015 08:13 AM
3rdgenparts
Interior Parts for Sale
0
Aug 8, 2015 07:09 PM
drathaar907
TPI
0
Aug 6, 2015 04:20 PM




All times are GMT -5. The time now is 09:36 PM.