| Author |
|
03SE4DRCC
Newbie
Joined: Jan 10 2011
Online Status: Offline
Posts: 9
Member's Gallery:
View Gallery
Location:
United States
|
| Posted: Jan 24 2011 at 1:03pm | IP Logged
|
|
|
after changing the plug & wires, distributor Cap and fuel oil, I still have these codes popping up. Now should look towards my O2 sensors next / replace the Cats? Or should I try to replace my knock sensor. Dont know which one will be next to change.. I have heard the knock is really hard to get to. Just wondering which avenue i should venture down first.
|
| Back to Top |
|
| |
frontierguy
Senior Member
Master Mechanic
Joined: May 20 2008
Online Status: Offline
Posts: 2591
Member's Gallery:
View Gallery
Location:
U.S. - Pennsylvania
|
| Posted: Jan 24 2011 at 7:22pm | IP Logged
|
|
|
P0420 is the bank 1 three way cat and P0328 is the knock
sensor.
__________________
'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
Nissan Technician 25 + years
2011 John Deere X720SE
|
| Back to Top |
|
| |
03SE4DRCC
Newbie
Joined: Jan 10 2011
Online Status: Offline
Posts: 9
Member's Gallery:
View Gallery
Location:
United States
|
| Posted: Jan 25 2011 at 5:48pm | IP Logged
|
|
|
so should i replace my cat coverter or the knock sensor... i dont know which one would be the better opition to start with?
|
| Back to Top |
|
| |
Spiffy1
Newbie
Joined: Jun 10 2009
Online Status: Offline
Posts: 32
Member's Gallery:
View Gallery
|
| Posted: Mar 03 2011 at 5:08am | IP Logged
|
|
|
Change the cat converter, I guarantee there is nothing wrong with the knock sensor as it has been stated as an intermittent fault where it will just come on when another code triggers the SES. If the knock sensor was bad you would definitely notice a problem whereas if it seems to run normal it is just the cat. I have the same exact problem codes and the truck runs completely fine. Also changing the knock sensor is a lot of work and if you have someone else do it plan on spending a pretty penny. Disregard the knock sensor fault. Fix the cat converter and I put money on the SES light going out on its own.
|
| Back to Top |
|
| |
frontierguy
Senior Member
Master Mechanic
Joined: May 20 2008
Online Status: Offline
Posts: 2591
Member's Gallery:
View Gallery
Location:
U.S. - Pennsylvania
|
| Posted: Mar 03 2011 at 6:28pm | IP Logged
|
|
|
If you have a P0420 code, you need a bank 1 three way
cat.If you have a P0328 code(even though it may be
intermittent), you need a knock sensor. You most likely
will never experience any concerns due to the knock sensor
because it's main function is to retard timing in the event
of spark knock. It doesn't come on due to another fault
code, it comes on because it is failing.
__________________
'10 Altima SL
Traded 08 Frontier for 16 Frontier SV CC Long box, quite an upgrade. I do miss the 6 speed and Dynomax ex.
Nissan Technician 25 + years
2011 John Deere X720SE
|
| Back to Top |
|
| |
Active Topics 
Memberlist 
Search 
Help 
Register 
Login
Nissan Frontier Forums : Problems / Technical
Topic: PO420 & PO328 CODES STILL?
