IS200 20002 Misfire, emission, rich condition, long term fuel trim problems - Lexus IS Forum
User Tag List

LinkBack Thread Tools
post #1 of 1 (permalink) Old 01-09-2019, 12:34 PM Thread Starter
Join Date: Jan 2019
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
IS200 20002 Misfire, emission, rich condition, long term fuel trim problems

Lexus is 200 (Year-2002), Engine 1FGE runing on gas and LPG now has following problems:
1. Misfires in cylinders 1;2;3 and multiple misfire.
2. Failed emission test by a mile (And there is a lot of smoke).
3. Sometimes rich fuel condition error is present.
4. At idle long term fuel trim is at about -20% at higher RPM it comes to about 0%

What was tried already:
1. Changed ignition coils and spark plugs, didint help.
2. Checked o2 sensor readings, found bank 1 sensor, replaced it and didnt help.
3. Found catalytic converter of bank 1 in pieces, removed it completely and didnt help.
4. Did cylinder compression test and it is ok.

I am running out of ideas what to check next, any ideas?
Gintautas Savickas is offline  
Sponsored Links

  Lexus IS Forum > Lexus IS > Basic Help & Repair

Quick Reply

Register Now

In order to be able to post messages on the Lexus IS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself. If your address is invalid, you will likely lose access to the site.

Email Address:


Current users viewing this Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
IS300 Long Term Fuel Trims and Runs Rich while Warming Up christopherc Basic Help & Repair 4 12-04-2018 11:19 AM
Long term fuel trim question bank 2 IM QUIKR General Discussion 2 07-28-2018 12:42 PM
IS200 1jz fuel light and level problems Tommyboyblitz General Discussion 0 11-24-2015 11:36 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome