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911uk

Help with p1128 and p1130 codes

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8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHHelp with p1128 and p1130 codes

Leading reported evidence

Repair 3.4l engine and i am having issues

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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 performed work without a confirmed outcome
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.

Performed · outcome unconfirmed · Original poster

I have a recently repaired 3.4l engine and I am having issues with these codes.

Original post Read captured discussion
Help with p1128 and p1130 codes
Frequently discussed work

Clean but it will more than likely need

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

MAF - You can try cleaning but it will more than likely need to be replaced.

Original post Read captured discussion
Help with p1128 and p1130 codes
Read full discussion summary

Leading evidence: 'Repair 3.4l engine and i am having issues' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean but it will more than likely need' (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 · 8 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Replace maf already and no

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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 performed work without a confirmed outcome
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.

Performed · outcome unconfirmed · Original poster

I have replaced the MAF already and no changes to the exhaust.

Original post Read captured discussion
Help with p1128 and p1130 codes

Clean but it will more than likely need

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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 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

MAF - You can try cleaning but it will more than likely need to be replaced.

Original post Read captured discussion
Help with p1128 and p1130 codes

Replace cats or exhaust

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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 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

Have you changed your cats or exhaust?

Original post Read captured discussion
Help with p1128 and p1130 codes
Frequently discussed actions (4)

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

Clean but it will more than likely need

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

MAF - You can try cleaning but it will more than likely need to be replaced.

Original post Read captured discussion
Help with p1128 and p1130 codes

Repair 3.4l engine and i am having issues

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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.

Performed · outcome unconfirmed · Original poster

I have a recently repaired 3.4l engine and I am having issues with these codes.

Original post Read captured discussion
Help with p1128 and p1130 codes

Replace cats or exhaust

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

Have you changed your cats or exhaust?

Original post Read captured discussion
Help with p1128 and p1130 codes

Replace maf already and no

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
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.

Performed · outcome unconfirmed · Original poster

I have replaced the MAF already and no changes to the exhaust.

Original post Read captured discussion
Help with p1128 and p1130 codes
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.

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

  • 911uk: 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: 20261026T105141Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I have a recently repaired 3.4l engine and I am having issues with these codes. It will throw a CEL after more than 30 minutes of spirited driving when I sit at a traffic light. Any ideas or help would be appreciated. Mark

POST 2Original post

Have you changed your cats or exhaust? Looks like a 02 sensor trigger.

POST 3Original post

MAF - You can try cleaning but it will more than likely need to be replaced.

POST 4 / ORIGINAL POSTEROriginal post

I have replaced the MAF already and no changes to the exhaust. Any other possibilities? mark

POST 6Original post

If you have a diagnostic tool you should be able to look at live data? The MAF at idle should be between 4.5 g/s to 5 g/s The O2 sensors should fluctuate between .8 to .2v. As they go lean and rich. I would also be looking for exhaust leaks and vacuum leaks. The vacuum leaks could be in and around the induction pipe/air box or throttle body.

POST 7Original post

The fault codes are the same but for each bank so i've listed one only . First thing to check .. make sure the oil filler cap has a good seal and is closed properly .

POST 8 / ORIGINAL POSTEROriginal post

Unbelievable! Thank you for the breakdown. I am on my way to fixing this. Mark

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