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Do I need a new Catalytic Converter ??

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May 23, 2012, 9:45 PM

Post #1 of 4 (7220 views)
Do I need a new Catalytic Converter ?? Sign In

1994 Plymouth Voyager
Odometer: 216000 Kilometers
Engine: 3L , 6 cylinder
(engine rebuilt about 4 years ago)

I live in Toronto, Canada where we need an emission test every 2 years.
I did the emission test last year, and passed, but not by much. My mechanic said I would need to change my catalytic converter to pass the test next year. I can afford to change it now, but need a second opinion as to whether changing the catalytic will improve my results compared to last year. Here are the results from last year:


---------ASM 2525 TEST====================== CURB IDLE TEST
------------Limit------ Reading------ Result========== Limit-------- Reading-------- Result
HC ppm ---0054 ------0046 ---------PASS=========== 0200------- 0038----------- PASS
CO % ------00.30 -----00.03--------- PASS========== 01.00--------00.01---------- PASS
NO ppm---- 757------- 583----------- PASS========== N/A--------- N/A------------ N/A
-------------RPM ------1988 ----------VALID ==========RPM ------ --0781 -----------VALID
-------------Dilution ---14,73 ---------VALID ==========Dilution----- 14,21---------- VALID

Can anyone interpret these results??
Any help will be greatly appreciated.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 23, 2012, 9:49 PM

Post #2 of 4 (7214 views)
Re: Do I need a new Catalytic Converter ?? [In reply to] Sign In

Those are passing results. What's there to interpret?


We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

Ultimate Carjunky / Moderator
Discretesignals profile image

May 23, 2012, 9:53 PM

Post #3 of 4 (7210 views)
Re: Do I need a new Catalytic Converter ?? [In reply to] Sign In

I honestly wouldn't worry about it until it doesn't pass.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on May 23, 2012, 9:58 PM)

Veteran / Moderator
zmame profile image

Mar 30, 2013, 2:41 PM

Post #4 of 4 (4683 views)
Re: Do I need a new Catalytic Converter ?? [In reply to] Sign In

The DriveClean program has changed as of JAN 2013 in ontario. Now the test is completely OBD for 1996 and newer.
Basically if your check engine light is off you pass. This does not mean you can clear your codes and go for the test.
You light has to be off and all emission systems passed a drive cycle.

On 1995 - 1988 its a 2 speed idle tailpipe emission test.

Do I need a new Catalytic Converter ??

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