OBD II error code 430?

Log Out | Topics | Search Moderators | Register | Edit Profile

Author Message   Rhett Krulla (Retro78) Member Username: Retro78 Post Number: 53 Registered: 04-2002 Posted on Wednesday, November 19, 2003 - 06:15 pm:    Hey guys, I have a 96' Disco with the check engine light on. I had a friend test it with a OBD II scanner and it came up with a error code 430. Does anyone know what this could mean. I think at this point it could be a bad O2 sensor for my cats but that's just my guess. Anyone info would be appreciated. Thanks, DP   Clif Ashley (Cta586) Senior Member Username: Cta586 Post Number: 381 Registered: 04-2002 Posted on Wednesday, November 19, 2003 - 07:27 pm:    Cats are going bad, if they arent gone already. Search.   Corey (Discobro) Senior Member Username: Discobro Post Number: 267 Registered: 12-2002 Posted on Wednesday, November 19, 2003 - 08:46 pm:    All I know is that 430 is an emissions error code and that the catalitic "threshold" is not up to par. Don't ask me what that means...   Jason McCombs (Jasonmc) Member Username: Jasonmc Post Number: 106 Registered: 06-2003 Posted on Wednesday, November 19, 2003 - 08:47 pm:    my codereader definition list says this for 430: Catalyst System Efficiency Below Threshold (Bank 2)   Corey (Discobro) Senior Member Username: Discobro Post Number: 269 Registered: 12-2002 Posted on Wednesday, November 19, 2003 - 08:59 pm:    Exactly but what does that mean? Are O2 sensors going or do the cats need replaced? Open your wallet and put the cash in Bank 2??   Alex Moore (Landvagabund) New Member Username: Landvagabund Post Number: 32 Registered: 02-2003 Posted on Friday, November 21, 2003 - 12:19 pm:    I'm pretty sure 430 is just a bad O2 sensor. my Disco has 420 error code up right now with at same description, except under "Bank 1". I'm pretty sure it's just the O2 sensor...   Alex Moore (Landvagabund) New Member Username: Landvagabund Post Number: 33 Registered: 02-2003 Posted on Monday, December 01, 2003 - 12:20 pm:    Correction. I just talked to Land Rover on the phone about the "Catalyst System Efficiency Below Threshold (Bank 1 or 2)" problem. They said it was something wrong in the set effeciency standard of the exhaust system. They said to determine what it actually is, you need to go to a shop where they can do diagnostics (or the dealer) and get them to run a diagnostic on the exhaust system. It may have been something as small as a drop of water in the gas. (which is why i always put premium in my 98 D1). Hope this was helpful, Alex   D Lee Daugherty (Discondixie) New Member Username: Discondixie Post Number: 4 Registered: 11-2003 Posted on Monday, December 01, 2003 - 06:50 pm:    Alex, Why would the fact that you put premium keep water out of your gas. If you buy premium from a place that does not sell very much premium then your odds of getting bad gas is much higher. Just 2 cents. Lee