('98-'00) Catalytic converter questions? - Subaru Forester Owners Forum
User Tag List

 
Thread Tools Display Modes
post #1 of 2 (permalink) Old 04-23-2019, 02:40 PM Thread Starter
Forum Member
 
Join Date: Mar 2019
Location: Northern AZ
Posts: 7
Car Year: 1999
Car Model: Forester
Feedback Score: 0 reviews
Catalytic converter questions?

Good day to all...question...my '99 Forester has the check engine light on and haven't had the time to check with the code reader, hope to get to it this week. Anyway, been reading up on the MPG and exhaust forums; I am getting, probably 15-17 MGP. So after reading up, I thought I'd check the catalytic converter. Not sure if I could physically see if it was ok or not, but I was surprised to see that the previous owner had put a hole through the comb material. I read that some were saying, running without the converter is asking for burnt valve or other major issues. Thoughts ???

jahwarrior007 is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 04-24-2019, 03:12 AM
Forum Member
 
Join Date: Nov 2015
Location: Centerville, TN
Posts: 131
Car Year: 2013
Car Model: crosstrek, Forester+
Feedback Score: 0 reviews
I believe the first O2 sensor (ahead of the cat) reads and signals to the ECU for fuel mix, while the second O2 sensor (after the cat) monitors the cat's performance and set the check engine light if the cat is not working properly. My 98 Forester had the cat completely removed by the prior owner and although the check engine light is always on, it runs fine and gets normal mileage. I don't like this, because if something else fails I won't know it unless I read the codes every few weeks just to be sure, but I don't believe engine is affected. Best idea is install new converter and check the muffler for being clogged. Aftermarket universal converters are about $100.


rustfarmer
[email protected] is offline  
Sponsored Links
Advertisement
 
Reply

  Subaru Forester Owners Forum > Technical Forums and Vehicle Assistance > Engine and Exhaust > EJ25 - 2.5L Non-Turbo (1998-2010)

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
('06-'08) Need advice on catalytic converter replacement! Help? - Updated! SF2004 EJ25 - 2.5L Non-Turbo (1998-2010) 9 03-05-2019 12:45 PM
('03-'05) New catalytic converter cherry red at idle Mook Problems, Maintenance, and Warranty 27 06-24-2016 09:51 PM
('03-'05) Can Catalytic Converter fail twice greenmountain Problems, Maintenance, and Warranty 7 07-09-2015 02:22 PM
('03-'05) Opinions on catalytic converter replacement Banana_Stand EJ25 - 2.5L Turbocharged (2004-2013) 8 01-14-2015 12:46 PM
Eastern Catalytic Converter Installation Report TexasForester Problems, Maintenance, and Warranty 9 03-01-2013 02:22 PM

Posting Rules  
You may not post new threads
You may not 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 Off

 

Title goes here

close
video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome