ClubLexus - Lexus Forum Discussion

Notices
LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Mechanic Says Replace ECU/ECM - HELP!

Thread Tools
 
Search this Thread
 
Old Apr 23, 2004 | 09:24 AM
Share
  #1  
dknoxking's Avatar
dknoxking
Thread Starter
Rookie
 
Joined: Apr 2004
Posts: 53
Likes: 0
From: New York
Default Mechanic Says Replace ECU/ECM - HELP!
My mechanic says I need to replace my ECU. It is a 93 LS 400. Do I go with a "new" or used?
Reply
0
Old May 18, 2004 | 12:34 PM
Share
  #2  
cnacne's Avatar
cnacne
Driver School Candidate
 
Joined: Jun 2002
Posts: 27
Likes: 0
From: Illinois
Default
Can you tell us a bit more? Why are you being told to replace the ECU? What symptoms were you having that made you bring the car to the mechanic?


Joe
Reply
0
Old May 18, 2004 | 12:47 PM
Share
  #3  
dknoxking's Avatar
dknoxking
Thread Starter
Rookie
 
Joined: Apr 2004
Posts: 53
Likes: 0
From: New York
Default
I did have the ECU replaced. Car would occasionally not start. Would run very rough when cold. It was odd. My mechanic hooked it up to his computer and could not get a reading. Hope this helps. david
Reply
0
Old May 21, 2004 | 06:37 AM
Share
  #4  
Strida's Avatar
Strida
Rookie
 
Joined: Oct 2002
Posts: 94
Likes: 0
From: Canada
Default
Originally posted by dknoxking
I did have the ECU replaced. Car would occasionally not start. Would run very rough when cold. It was odd. My mechanic hooked it up to his computer and could not get a reading. Hope this helps. david
I think you just wasted your money on a replacement ECU. I dont think those problems are ECU related.
Reply
0
Old May 21, 2004 | 07:15 AM
Share
  #5  
dknoxking's Avatar
dknoxking
Thread Starter
Rookie
 
Joined: Apr 2004
Posts: 53
Likes: 0
From: New York
Default
If you say so, but the car runs perfect now!
Reply
0
Old May 21, 2004 | 08:30 AM
Share
  #6  
Strida's Avatar
Strida
Rookie
 
Joined: Oct 2002
Posts: 94
Likes: 0
From: Canada
Default
Originally posted by dknoxking
If you say so, but the car runs perfect now!
If it worked, great. But those things could have been related to something else ie. cloged fuel filter, pcv, a much needed tune up? Did the check engine light even came on? But if changing the ECU worked, congrats.
Reply
0
Old May 21, 2004 | 08:34 AM
Share
  #7  
dknoxking's Avatar
dknoxking
Thread Starter
Rookie
 
Joined: Apr 2004
Posts: 53
Likes: 0
From: New York
Default
Thanks! Yes the check engine light did come on. I am glad it worked!
Reply
0

Trending Topics

Old Jun 17, 2004 | 08:05 PM
Share
  #8  
LexLS's Avatar
LexLS
Lexus Test Driver
20 Year Member
Photogenic
Photoriffic
 
Joined: Mar 2003
Posts: 1,176
Likes: 2
From: Minnesota
Default
So you had a new ECU installed, right? How much did that set you back?

Good to hear it worked .
Reply
0
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-1

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-2

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-3

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-4

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-5

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-6

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
story-7

Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

 Michael S. Palmer
story-8

Top 10 Lexus & Toyota Models of the 1990s RANKED!

 Joe Kucinski
story-9

10 Great Toyotas That Could Have Been Lexus Models

 Joe Kucinski
Old Jun 18, 2004 | 07:42 AM
Share
  #9  
dknoxking's Avatar
dknoxking
Thread Starter
Rookie
 
Joined: Apr 2004
Posts: 53
Likes: 0
From: New York
Default
It was not cheap..........My mechanic, who is not affiliated with a Lexus Dealership, had to order the part from Lexus. The dealership sent a "remanufactured" ECU, so it was a little less than I originally thought. The part was $918 installed. So far so good!
Reply
0
Old Jun 27, 2004 | 09:11 PM
Share
  #10  
JPI Racing's Avatar
JPI Racing
Lexus Champion
 
Joined: Jun 2003
Posts: 2,079
Likes: 2
From: Texas
Default
I'm glad you got it fixed. I hardly see an ECU fail though not on Lexus. What diagnost did he do? I;m just curious.
JPI
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ecu for sale part number 89666-30030
bmorekid
2Gen GS430 / 400/ 300 Classifieds (98-05)
10
Nov 2, 2010 08:36 AM
LexusPros Full ECU, Yes or NO?
nuocmam122
SC - 1st Gen (1992-2000)
7
Nov 26, 2004 09:45 AM
ecu chip
alexus
GS - 2nd Gen (1998-2005)
3
May 12, 2002 10:22 AM
Ecu
VSsc400
SC - 1st Gen (1992-2000)
15
May 9, 2002 07:23 AM
Where is the group-buy info for the Swift HFI/ECU?
Xpicy
GS - 2nd Gen (1998-2005)
3
Apr 11, 2001 08:56 AM
Tags
Back to Subforum
LS - 1st and 2nd Gen (1990-2000)
View Next Unread
A/C issue




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -7. The time now is 07:53 PM.

story-0
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-1
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-2
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-3
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-4
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-5
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-6
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE
story-7
Top 10 Reasons to Buy a Lexus TX 550h+ (& 3 Reasons to AVOID!)

Slideshow: reviewing the 2026 Lexus TX 550h+ Luxury plug-in hybrid crossover SUV!

By Michael S. Palmer | 2026-03-05 19:04:47


VIEW MORE
story-8
Top 10 Lexus & Toyota Models of the 1990s RANKED!

Slideshow: Top 10 Lexus and Toyota model of the 1990s ranked.

By Joe Kucinski | 2026-03-04 12:35:11


VIEW MORE
story-9
10 Great Toyotas That Could Have Been Lexus Models

Slideshow: 10 Toyotas that could have been Lexus models.

By Joe Kucinski | 2026-02-19 11:44:33


VIEW MORE