YACT: 98 Explorer Catalytic Converter Efficiency Code

DeadByDawn

Platinum Member
Dec 22, 2003
2,349
0
0
I own a 98 ford explorer, V8, All wheel drive, 75k miles. About a year ago the check engine light came on, took it into the dealership and they said that the catalytic converter was shot. So I had it replaced, and since my car had less than 80k miles on it they did the work for free. Got it home and it had a pretty good miss to the idle. I replaced the spark plugs and wires, and that took care of the miss. Then the check engine light came on again. It was giving me the following code:

P0430
Catalyst System Efficiency Below Threshold (Bank 2)


So the guy at autozone told me that meant that the 02 sensor on the passenger side was bad in front of the converter, so I bought a new one and replaced it. Cleared the code, and it comes back on about 100 miles later. The car idles and drives fine, fuel efficiency is about where I would expect it to be. What would be the next thing you would look at replacing? They guy at autozone said to replace the EGR valve. I could send it back to the dealer that changed out the catalytic converter, but they charge an arm and a leg, are far away, and I really don't want to deal with them if I could fix it myself.
 

RagingBITCH

Lifer
Sep 27, 2003
17,618
2
76
How does Ford suck? Because the guy at autozone probably doesn't know what he was talking about if it's still the same code as before? That the miss you had was probably because you should have done a tune-up a long time ago?
 

woowoo

Platinum Member
Feb 17, 2003
2,092
1
0
You go from the dealer to autozone?
Where is the "Trusted local mechanic"
Find him, he will help you........
 

Your Ford will be DeadByDusk, shall I go into one of my repair rants ?
 

Quixfire

Diamond Member
Jul 31, 2001
6,892
0
0
ISSUE:
Some 1998 Explorer/Mountaineer vehicles equipped with the 5.0L engine may exhibit a malfunction indicator lamp (MIL) on with diagnostic trouble code(s) P0420 (Catalyst System Efficiency Below Threshold - Bank 1) and/or P0430 (Catalyst System Efficiency Below Threshold - Bank 2).

ACTION:
To service, reprogram the powertrain control module (PCM) to the latest calibration using WDS release B28.3 or higher. Replacement of catalysts is no longer necessary to address the most common causes of this condition.

All you need to do is have the dealer reprogram your PCM to solve the problem. Never ever listen to Autozone for driveability daignosis.
 

Damn you Quix, I wanted to rant.

THAT WAS A WAAAAAY TO SIMPLE A ANSWER
 

PingSpike

Lifer
Feb 25, 2004
21,758
603
126
Originally posted by: Quixfire
ISSUE:
Some 1998 Explorer/Mountaineer vehicles equipped with the 5.0L engine may exhibit a malfunction indicator lamp (MIL) on with diagnostic trouble code(s) P0420 (Catalyst System Efficiency Below Threshold - Bank 1) and/or P0430 (Catalyst System Efficiency Below Threshold - Bank 2).

ACTION:
To service, reprogram the powertrain control module (PCM) to the latest calibration using WDS release B28.3 or higher. Replacement of catalysts is no longer necessary to address the most common causes of this condition.

All you need to do is have the dealer reprogram your PCM to solve the problem. Never ever listen to Autozone for driveability daignosis.

So basically he needs to reflash in Explorer with the latest available bios.
 

Quixfire

Diamond Member
Jul 31, 2001
6,892
0
0
Originally posted by: Roger
Damn you Quix, I wanted to rant.

THAT WAS A WAAAAAY TO SIMPLE A ANSWER
I'm sorry Roger I thought he was asking for some help with his problem. I could remove my answer until later if you would like.
 

Quix, you must start behaving like Scotty on the "old" Enterprise, when people ask you for something, tell them it will take 25 hours to accomplish, then do it in 1 hour, in this case, you should have at least typed two paragraphs of techno babble that no one including I could understand,m then post a simple explanation at a later date. ;)
 

NutBucket

Lifer
Aug 30, 2000
27,152
635
126
Originally posted by: Roger
Quix, you must start behaving like Scotty on the "old" Enterprise, when people ask you for something, tell them it will take 25 hours to accomplish, then do it in 1 hour, in this case, you should have at least typed two paragraphs of techno babble that no one including I could understand,m then post a simple explanation at a later date. ;)

Hey, that sounds like my job!:D
 

Quixfire

Diamond Member
Jul 31, 2001
6,892
0
0
Originally posted by: Roger
Quix, you must start behaving like Scotty on the "old" Enterprise, when people ask you for something, tell them it will take 25 hours to accomplish, then do it in 1 hour, in this case, you should have at least typed two paragraphs of techno babble that no one including I could understand,m then post a simple explanation at a later date. ;)
I though that was your trademark. ;)

I will try tyo do better in future posts.
 

DeadByDawn

Platinum Member
Dec 22, 2003
2,349
0
0
OMG Quix YOU ARE THE MAN!!!

Where did you find that info if I may ask?

Thank you thank you thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 

DeadByDawn

Platinum Member
Dec 22, 2003
2,349
0
0
Originally posted by: Roger
Your Ford will be DeadByDusk, shall I go into one of my repair rants ?



I take it you don't like fords LOL. In all seriousness I have had more problems with this vehicle than any other that I have owned.
 

Quixfire

Diamond Member
Jul 31, 2001
6,892
0
0
Originally posted by: DeadByDawn
OMG Quix YOU ARE THE MAN!!!

Where did you find that info if I may ask?

Thank you thank you thank you!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
As Roger stated I am a Ford tech, slightly retired, and I have access to a Ford service knowledge base.
 

Ornery

Lifer
Oct 9, 1999
20,022
17
81
The powers that be must be prejudiced against Ford, or Quixfire would be an Ultra-Elite member by now!
 

As Roger stated I am a Ford tech, slightly retired, and I have access to a Ford service knowledge base.

Jebus, I have got to get new glasses, when I read your statement quix, I first read it as ;



As Roger stated I am a Ford tech, slightly retarded, and I have access to a Ford service knowledge base.




:eek:
 

Quixfire

Diamond Member
Jul 31, 2001
6,892
0
0
Originally posted by: Roger
As Roger stated I am a Ford tech, slightly retired, and I have access to a Ford service knowledge base.

Jebus, I have got to get new glasses, when I read your statement quix, I first read it as ;



As Roger stated I am a Ford tech, slightly retarded, and I have access to a Ford service knowledge base.




:eek:
Thanks Roger, that's the funniest thing I read all day. In fact I'm still laughing as I type this.

:D:D:D:D:D:D:D:D:D:D