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

Catalytic Converter needed

Thread Tools
 
Search this Thread
 
Old Nov 29, 2015 | 01:39 PM
  #1  
LORAN's Avatar
LORAN
Thread Starter
Driver School Candidate
 
Joined: Jul 2012
Posts: 31
Likes: 2
From: Georgia
Default Catalytic Converter needed

Have a 95 LS400 that I think has a bad catalytic converter, front passenger side. Also have another 95 I wrecked that I kept for parts. Problem is on the wrecked car the bolts are really corroded and I might not be able to remove them. If I go aftermarket for the CC, which is the best one for the money? Thanks for any help.
Reply
Old Nov 29, 2015 | 02:04 PM
  #2  
dicer's Avatar
dicer
Lead Lap
 
Joined: Jul 2010
Posts: 4,525
Likes: 98
From: ca
Default

If you use Kroil on them and some heat they should loosen up. They can be cut off as well. Check out Rock auto for the CC.
Reply
Old Nov 29, 2015 | 02:25 PM
  #3  
LORAN's Avatar
LORAN
Thread Starter
Driver School Candidate
 
Joined: Jul 2012
Posts: 31
Likes: 2
From: Georgia
Default

Have Kroil but used some other stuff first because I couldn't find the Kroil, have now found it, haven't tried heat yet. Can cut 4 of 5 bolts off, the 5th looks like It is impossible to get to to cut off. Which brand from Rock Auto?

Last edited by LORAN; Nov 29, 2015 at 02:30 PM.
Reply
Old Nov 29, 2015 | 03:07 PM
  #4  
billydpowe's Avatar
billydpowe
Lexus Champion
iTrader: (1)
 
Joined: Mar 2009
Posts: 3,225
Likes: 174
From: texas
Default

on my 94, I used the cheapest ebay had to offer, passed inspection and never had a problem with them... so? sold it to a local man, later he gave it to his mom and I guess she is still driving it.....
Reply
Old Nov 29, 2015 | 03:16 PM
  #5  
dicer's Avatar
dicer
Lead Lap
 
Joined: Jul 2010
Posts: 4,525
Likes: 98
From: ca
Default

As long as the tools stay on it, just use a very long 1/2 drive ratchet or breaker bar and break the bolt. I'd use a cutting torch if it can be reached, just don't let the flame hit on the floor.
Reply
Old Dec 1, 2015 | 01:39 AM
  #6  
LORAN's Avatar
LORAN
Thread Starter
Driver School Candidate
 
Joined: Jul 2012
Posts: 31
Likes: 2
From: Georgia
Default

Thanks men, I used a flow tester to check the CC's and they check out OK. Now think the problem is electrical. Changed out one of the coil packs and it worked great for a day and then started misfiring again. Am getting misfires from both coil pack banks, 3 on one side and 1 on the other. Changed the coil pack on the side with 3 cylinders misfiring. Might be the ECU. Plugs and wires changed 20K ago.
Reply
Old Dec 1, 2015 | 02:42 AM
  #7  
dicer's Avatar
dicer
Lead Lap
 
Joined: Jul 2010
Posts: 4,525
Likes: 98
From: ca
Default

Flow tester. Do you have pictures of it or where to find one?
Reply
Old Dec 1, 2015 | 08:21 AM
  #8  
UNCNOR's Avatar
UNCNOR
Pole Position
iTrader: (1)
 
Joined: May 2013
Posts: 344
Likes: 7
From: Florida
Default

Originally Posted by LORAN
Have Kroil but used some other stuff first because I couldn't find the Kroil, have now found it, haven't tried heat yet. Can cut 4 of 5 bolts off, the 5th looks like It is impossible to get to to cut off. Which brand from Rock Auto?
Walker;Purchased several months ago from rockauto and final cost was less than $100.00(after $50.00 rebate).No problems so far and annoying CEL went away.1997 LS400.
Reply
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
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bullochdaw
LS - 3rd Gen (2001-2006)
5
Jul 18, 2018 04:54 PM
S-Lex-95
LS - 1st and 2nd Gen (1990-2000)
4
Jul 30, 2014 10:59 AM
nicks88
ES - 1st to 6th Gen (1990-2018)
9
Nov 23, 2012 01:03 PM
snayger
LS - 1st and 2nd Gen (1990-2000)
3
Jul 18, 2011 11:17 PM
Champstar
Suspension and Brakes
8
Sep 20, 2009 12:05 PM




All times are GMT -7. The time now is 09:22 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