help another CEL [Archive]

Altezza101

11-28-2005, 03:02 PM

alright i went to autozone got the reading and it came up with 2 reason my CEL went off. P0430 and P0403. 430 is Catalyst System Efficiency Below Threshold (Bank 2) and the 403 is Exhaust Gas Recirculation Circuit Malfunction. wat can i do fix this problem?
thanks a bunch +rep

mikefate

11-28-2005, 03:05 PM

are you using an o2 sensor simulator?

BrokeAZZWillie

11-28-2005, 04:27 PM

well if you don't have an o2 sim ur gonna have a cel....i had ever since the header .....not really a big deal

TSopranoIS300

11-28-2005, 04:31 PM

are you using an o2 sensor simulator?

you and Danny installed it...duh ;)

mikefate

11-28-2005, 04:43 PM

you and Danny installed it...duh ;)

i did the manual labor part. danny took care of the ecu. wasnt sure if he had one installed or not.

anyways, are the lights on the o2 sim still on? maybe recheck wirirng?

MYIS300T

11-28-2005, 04:59 PM

. I have a wiring diagram for the toymoto o2 sim.. check the vacume lines on the egr valve.

Altezza101

11-28-2005, 06:14 PM

hmmm alright ill take a look

Altezza101

11-28-2005, 06:22 PM

yea i checked the o2 sim for my header and both lights are on... one solid an done blinking

MYIS300T

11-28-2005, 07:19 PM

that sounds right.