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Engine Light Will not Reset

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

Discussion summary

YOUR RESEARCHEngine Light Will not Reset

Leading reported evidence

Check o2 sensor, maf, purge valve,fuel pressure etc w computer

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

He checked O2 sensor, MAF, purge valve,fuel pressure etc w computer.

Engine Light Will not Reset
Frequently discussed work

Check corresponding numerical code

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

With a code reader you should be able to check a corresponding numerical code that should pinpoint reason for CEL to reappear.

Engine Light Will not Reset
Read full discussion summary

Leading evidence: 'Check o2 sensor, maf, purge valve,fuel pressure etc w computer' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check corresponding numerical code' (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 4 other evidence results

Check corresponding numerical code

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

With a code reader you should be able to check a corresponding numerical code that should pinpoint reason for CEL to reappear.

Engine Light Will not Reset

Reset but came

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 · Original poster

CEL came back on and was reset but came on again 2 days later while driving.

Engine Light Will not Reset

Reset even though computer determined each aspect of cel component

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 · Original poster

Anyone have any idea why the CEL wont reset even though computer determined each aspect of CEL component to be functioning well?

Engine Light Will not Reset

Repair i was diagnosed

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
1
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 report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I was diagnosed with air intake leak that was repaired. CEL came back on and was reset but came on again 2 days later while driving.

Engine Light Will not Reset
Frequently discussed actions (5)

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

Check corresponding numerical code

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

With a code reader you should be able to check a corresponding numerical code that should pinpoint reason for CEL to reappear.

Engine Light Will not Reset

Check o2 sensor, maf, purge valve,fuel pressure etc w computer

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

He checked O2 sensor, MAF, purge valve,fuel pressure etc w computer.

Engine Light Will not Reset

Repair i was diagnosed

No successful repair reported for this finding.

0
Reported fixes
1
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that report an unsuccessful attempt
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.

Unsuccessful attempt · Original poster

I was diagnosed with air intake leak that was repaired. CEL came back on and was reset but came on again 2 days later while driving.

Engine Light Will not Reset

Reset but came

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

CEL came back on and was reset but came on again 2 days later while driving.

Engine Light Will not Reset

Reset even though computer determined each aspect of cel component

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

Anyone have any idea why the CEL wont reset even though computer determined each aspect of CEL component to be functioning well?

Engine Light Will not Reset
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.

  • 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: 20261026T103553Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Took in my 911 C4 2 for service bc of CEL. I was diagnosed with air intake leak that was repaired. CEL came back on and was reset but came on again 2 days later while driving. Brought car back to mechanic. He checked O2 sensor, MAF, purge valve,fuel pressure etc w computer. Everything was functioning normal per computer. He recalibrated the CEL 'system'. Anyone have any idea why the CEL wont reset even though computer determined each aspect of CEL component to be functioning well? Thank you!

POST 2Original post

With a code reader you should be able to check a corresponding numerical code that should pinpoint reason for CEL to reappear.

POST 3 / ORIGINAL POSTEROriginal post

the code that came on in the shop was faulty oxygen sensor bank1 and bank2. But they checked out to be working fine.

POST 5 / ORIGINAL POSTEROriginal post

The mechanic is good. Is it possible that the recalibration after fixing the air intake leak was needed? Anyone have experience with something similar where the CEL wouldnt go off?

POST 6Original post

What were the fault codes (originally)? and what are the fault codes now? There are several hundred faults that can turn on a CEL.

POST 7 / ORIGINAL POSTEROriginal post

inital problem was lean air on cylinders 4,5,6. (i do not have the number). when car returned to shop oxygen sensors on bank 1 and bank 2 had a problem.

POST 8Original post

Quotes source post: 5132899

I've seen cabling issues on the o2 sensors cause fault codes to come and go, while the sensors are in fact working correctly. Just contact to them is intermittently lost. Troubleshooting such issues is always a pain, but do a search here for some background info.

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