For new age WRX & STI...
#1
May be not the right forum for this, don't shoot me I need urgent help for a friend.
Does anybody know what Select Monitor fault code “PO 420” means in new age Imprezas both WRX&STI?
Thanks in advance.
JIM
Does anybody know what Select Monitor fault code “PO 420” means in new age Imprezas both WRX&STI?
Thanks in advance.
JIM
#2
Jim
The "PO420" is the "Catalyst below efficiency threshold" warning in the new age WRX. Normally comes on when you decat the car unless you buy a fix box from ScoobySport or Pony Express.
Duncan
Edited to add that, if I remember correctly, this warning is based on the efficiency of the downpipe cat and isn't normally triggered by changes to the uppipe or the 3rd cat.
[Edited by BugEyed - 11/13/2002 4:03:54 PM]
The "PO420" is the "Catalyst below efficiency threshold" warning in the new age WRX. Normally comes on when you decat the car unless you buy a fix box from ScoobySport or Pony Express.
Duncan
Edited to add that, if I remember correctly, this warning is based on the efficiency of the downpipe cat and isn't normally triggered by changes to the uppipe or the 3rd cat.
[Edited by BugEyed - 11/13/2002 4:03:54 PM]
#3
Scooby Regular
Join Date: Oct 1998
Location: Scoobysport, Basildon, UK
Posts: 4,300
Likes: 0
Received 0 Likes
on
0 Posts
Jim
Removing the up pipe or downpipe cats will trigger this error code. It makes no effect on the running of the car and can be cured by fitting an electronic fix that modifies the signal from the rear O2 sensor.
Removing the up pipe or downpipe cats will trigger this error code. It makes no effect on the running of the car and can be cured by fitting an electronic fix that modifies the signal from the rear O2 sensor.
#4
Thanks guys, just found it on Ravensblade site.
Pete AFAIK you shell CEL fix device.
I'll ask my friend (he is mechanic) if he wants some; please tell me the price if possible.
Cheers
JIM
Pete AFAIK you shell CEL fix device.
I'll ask my friend (he is mechanic) if he wants some; please tell me the price if possible.
Cheers
JIM
Thread
Thread Starter
Forum
Replies
Last Post
Scott@ScoobySpares
Full Cars Breaking For Spares
61
11 January 2021 03:08 PM
Scott@ScoobySpares
Full Cars Breaking For Spares
55
05 August 2018 07:02 AM
Scott@ScoobySpares
Full Cars Breaking For Spares
7
14 December 2015 08:16 AM
Danny0608
Subaru
6
27 September 2015 02:16 PM