i got the check engine light
its throwing code 67
can any body tell what is code 67
thanx all

 

up

 

P0420
67
Catalyst System Efficiency Below Threshold

It's a catalytic degredation code. Your car is probably running in limp or ultra-lean mode.

 

yes i fixed a new exhaust system with out the catalytic.
do i need to reinstall the catalytic

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jarfal &raquo;</TD></TR><TR><TD CLASS="quote">yes i fixed a new exhaust system with out the catalytic.
do i need to reinstall the catalytic</TD></TR></TABLE>

Well, if you deleted the catalytic, and are still running two O2 sensors, you'll throw a cat degredation code, and you can do two things to fix it:

1) put in a cataltyic converter
2) fool the O2 sensor.

You can fool the O2 sensor one of two ways, either wire in a spoof or put in a "mechanical" spoof. Lemmie see if I can find a link to the mechanical spoof, they cost like $8 to make.

 

http://cgi.ebay.com/ebaymotors...QQrdZ

expletive it, buy one for $9 on ebay

 

the problem the shipping will cose $100

ill get it

 

i had the same code. i swapped in a newer cat and it's good as gone.

 

Conver to obd1 so you can tune down the road. Get a chipped p28 and a conversion harness.