2008 f150 5.4l triton getting 430 and 430 p codes. - F150online Forums

Go Back  F150online Forums > Powertrain & Mechanical > V8 Engines
2008 f150 5.4l triton getting 430 and 430 p codes. >

2008 f150 5.4l triton getting 430 and 430 p codes.

2008 f150 5.4l triton getting 430 and 430 p codes.

  #1  
Old 09-10-2018, 01:56 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
2008 f150 5.4l triton getting 430 and 430 p codes.

Is it plugs, cop, 02 sensors or something else.
 
  #2  
Old 09-10-2018, 02:30 PM
glc's Avatar
glc
glc is offline
Senior Member
Join Date: Dec 2006
Location: Joplin MO
Posts: 37,529
Do you mean P0420 and P0430? Bad cats.
 
  #3  
Old 09-10-2018, 04:44 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
Originally Posted by glc View Post
Do you mean P0420 and P0430? Bad cats.
no just the codes I listed. It has a miss when running around 35-40. Iíve changed out 4 of the plugs so far. Changing out the other 4 this week. The old plugs had a big gap compared to the new double platinum plugs Iím putting in. I also have the brown boots.
 
  #4  
Old 09-10-2018, 04:52 PM
Senior Member
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
Posts: 6,487
The codes you posted are non-nonsensical. Please clarify what the full and complete codes are so we do not have to guess or try and fill in the blanks.
 
  #5  
Old 09-11-2018, 01:15 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
P0430 and P0530 P

Originally Posted by projectSHO89 View Post
The codes you posted are non-nonsensical. Please clarify what the full and complete codes are so we do not have to guess or try and fill in the blanks.
the error Iím getting is P0430 and P0430 P
i have just a generic scanner. Thatís all it says.
 
  #6  
Old 09-11-2018, 01:21 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
P0430 and P0430 P

The code reader I use is a basic one. All it says is the following 2 codes:
P0430 and P0430 P

 
  #7  
Old 09-11-2018, 03:08 PM
glc's Avatar
glc
glc is offline
Senior Member
Join Date: Dec 2006
Location: Joplin MO
Posts: 37,529
That's low catalyst efficiency bank 2 (driver's side) both a pending and a hard code. Change the rest of the plugs, clear the codes, and see if they come back.

If you have driven it much with a miss, that can trash the cats. Low efficiency isn't necessarily harmful unless they are getting plugged, but you won't pass an emission test without fixing it.
 
  #8  
Old 09-11-2018, 09:44 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
P0430 and P430 P

Changed the other 4 plugs on the drivers side and the codes went away. Truck runs better and has more more power. No more missing.
 
  #9  
Old 09-14-2018, 02:38 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
UPDATE!!! Codes came back. Still getting P0430 and P0430 P.
Is it one of the COP or is it really the 02 sensor and Cat?
 
  #10  
Old 09-14-2018, 02:45 PM
Senior Member
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
Posts: 6,487
Well, it probably started out as just a misfire but now the cat is toast. May have left the original problem unrepaired for too long thus ruining the converter.
 
  #11  
Old 09-14-2018, 03:03 PM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
Do you know the correct catalytic converters I should get. I just did a google search and there are a bunch out there. Some as low as $36.

Not sure which one to get that will not throw codes.
 
  #12  
Old 09-14-2018, 08:00 PM
Senior Member
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
Posts: 6,487
Are you in California?

Do you have to get emissions testing done as a condition of registration or plate renewal?
 
  #13  
Old 09-15-2018, 09:15 AM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
Originally Posted by projectSHO89 View Post
Are you in California?

Do you have to get emissions testing done as a condition of registration or plate renewal?
nope!!!
 
  #14  
Old 09-15-2018, 09:53 AM
Senior Member
Join Date: Oct 2002
Location: St. Louis (Out in the woods)
Posts: 6,487
Then feel free to either ignore the error or, otherwise, install anti-foulers to fool the system into thinking the cat is working and to keep the MIL off.
 
  #15  
Old 09-15-2018, 10:45 AM
Junior Member
Thread Starter
Join Date: Sep 2018
Posts: 9
The problem with loss of power. I havenít had the truck very long. My other truck has a 6 cylinder in it and seems to have more power. Iím thinking that cats are the reason for lack of power or my thinking of going from a 6 to an 8 cylinder is overly exaggerated.

Do do you know what cats will work? Will any that fits the truck work?
 

Thread Tools
Search this Thread
Quick Reply: 2008 f150 5.4l triton getting 430 and 430 p codes.


Sponsors

Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: