Non cat exhaust CEL? - Toyota Yaris Forums - Ultimate Yaris Enthusiast Site

01-26-2007, 10:38 AM

largeorangefont

Break'em off some.

View User's Garage

Drives: 07 Yaris LB, 04 Cobra

Join Date: Jan 2007

Location: So Cal, OC

Posts: 854

Quote:

Originally Posted by jouslee

Yea, looking at the diagram it seems like the front two are pre-cats, I'm not quite sure what they do in the yaris but on the 86-91 Rx-7's (They also had a 3 stage cat system) they would act like combustion chambers to burn the excess hydrocarbons that were thrown out by the engine.

The precats are for when the engine is cold.

« Previous Thread | Next Thread »

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 Forum Rules

Forum Jump

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
anyone use Dynamat/ Be Quiet to deaden exhaust noise?	Galavoxx	Performance Modifications	9	11-29-2006 04:28 AM
Fujitsubo Exhaust!!	MC-BPT	Sponsors Classifieds Area	17	11-16-2006 10:36 AM
Performance exhaust systems for yaris	aucorium	Performance Modifications	6	08-16-2006 08:12 AM

All times are GMT -4. The time now is 10:33 PM.