Rennlist

P0430 durametric help reading voltages

Add to repair workspace

New repair projectOpen repair workspace

Original source

5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHP0430 durametric help reading voltages

Reported or suspected cause

pretty well documented here

Reported cause

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report identifying a cause: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause
This issue is pretty well documented here.
Original post Read captured discussion
P0430 durametric help reading voltages

Frequently discussed work

Check before installing mini cats

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
Will install new plugs first and re check before installing mini cats.
Original post Read captured discussion
P0430 durametric help reading voltages

Read full discussion summary

Leading evidence: 'pretty well documented here' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'pretty well documented here' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check before installing mini cats' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 5 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Check before installing mini cats

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
Will install new plugs first and re check before installing mini cats.
Original post Read captured discussion
P0430 durametric help reading voltages

Check fuel trims

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Check your fuel trims to see what might be the concern.
Original post Read captured discussion
P0430 durametric help reading voltages

Replace sensors as they may be defective

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
So it was suggested I change the sensors as they may be defective.
Original post Read captured discussion
P0430 durametric help reading voltages

Frequently discussed actions (3)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check before installing mini cats

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
Will install new plugs first and re check before installing mini cats.
Original post Read captured discussion
P0430 durametric help reading voltages

Check fuel trims

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Check your fuel trims to see what might be the concern.
Original post Read captured discussion
P0430 durametric help reading voltages

Replace sensors as they may be defective

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster
So it was suggested I change the sensors as they may be defective.
Original post Read captured discussion
P0430 durametric help reading voltages

Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

pretty well documented here

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that report identifying a cause: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause
This issue is pretty well documented here.
Original post Read captured discussion
P0430 durametric help reading voltages

Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Ok so I had a p0430 code on stock cat with 80k I then changed to 200 cel cats and got both p0430and p0420 codes with all new sensors. So it was suggested I change the sensors as they may be defective. No dice.. still threw code. So I put some o2 spacers in. Nothing fancy. Just chose the smallest diameter insert. Now only getting p0430. So I got a durametric and did a crappy job of recording. Anyone tell me what�s going on. This is at idle. I went for a 20 min drive but let it sit for 20 mins after while I got my laptop out etc. You Tube

POST 2Original post

200 cel cats r known to through those codes. U probably need o2 bung extenders to "fool" the system. This issue is pretty well documented here.

POST 3Original post

Your Durametric readings show a rich fuel mixture entering the converters. .45 millivolts shows a well blended fuel air mixture. Post cat sensors show one converter not doing the job. Check your fuel trims to see what might be the concern.

POST 4 / ORIGINAL POSTEROriginal post

Quotes source post: 16722066

Thank you heres my fuel trims. I was told in a different post they look ok. I�ve added o2 spacers to the cats.. short t straight ones with smallest insert. Don�t seem to be doing anything. I�ll be chsnging out the plugs and I ordered fabspeed mini cats hoping this will fix the issues. Will install new plugs first and re check before installing mini cats. Watch...I�ll prob end up putting good stock cat back on and looking for bank 1 cat that�s still good.

POST 5Original post

It's been my experience that good stock cats beat all after market non-sense when it comes to CEL codes, and extenders, and minicats.

This is a source reference. Confirm exact model applicability in the original material.