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CEL & fault code...

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

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YOUR RESEARCHCEL & fault code...

Leading reported evidence

Check gas cap, and it wasnt even

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

I checked the gas cap, and it wasnt even on.

CEL & fault code...
Read full discussion summary

Leading evidence: 'Check gas cap, and it wasnt even' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check gas cap, and it wasnt even' (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.

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1 matching discussions · 11 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Clean mass air flow sensor

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

But the reason I asked was because I while back I got a MAF code so I cleaned it out and to get rid of the CEL I disconnected the battery.

CEL & fault code...

Disconnect battery

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
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

Do *not* ever disconnect the battery with the engine running, the key on, or the key even in the ignition!

CEL & fault code...

Performed · outcome unconfirmed

But the reason I asked was because I while back I got a MAF code so I cleaned it out and to get rid of the CEL I disconnected the battery.

CEL & fault code...

Fill tank earlier the same day

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

Yes, I filled the tank earlier the same day, then drove about half a tank, and the light came on just as I got home.

CEL & fault code...

Fill vent line causing the 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

yeah if it didnt come back, topping it off probably filled a vent line causing the code

CEL & fault code...
Frequently discussed actions (8)

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

Check gas cap, and it wasnt even

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

I checked the gas cap, and it wasnt even on.

CEL & fault code...

Clean mass air flow sensor

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

But the reason I asked was because I while back I got a MAF code so I cleaned it out and to get rid of the CEL I disconnected the battery.

CEL & fault code...

Disconnect battery

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
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

Do *not* ever disconnect the battery with the engine running, the key on, or the key even in the ignition!

CEL & fault code...

Performed · outcome unconfirmed

But the reason I asked was because I while back I got a MAF code so I cleaned it out and to get rid of the CEL I disconnected the battery.

CEL & fault code...

Fill tank earlier the same day

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

Yes, I filled the tank earlier the same day, then drove about half a tank, and the light came on just as I got home.

CEL & fault code...

Fill vent line causing the 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

yeah if it didnt come back, topping it off probably filled a vent line causing the code

CEL & fault code...

Reset when battery power is removed too)

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

The engine controller can keep track of how many miles (km actually, though limited to 65535km) the car was driven since the check engine light was cleared (and this may be reset when battery power is removed too).

CEL & fault code...

Run the key

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

Do *not* ever disconnect the battery with the engine running, the key on, or the key even in the ignition!

CEL & fault code...

Use of a code reader/eraser tool)

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

Anyhow, the code can not be retrieved once battery power is removed and reapplied (or the code is erased by the use of a code reader/eraser tool).

CEL & fault code...
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.

11 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: 20261027T044418Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

The check engine light came on a few days ago. Today I hooked up the Durametric scan tool and this is what came up: P0446 - Factory fault code 95 Evap Cannister shut-off valve function (below limit) I cleared the code, and it has not re-appeared after starting the engine and running it a bit. However, I have not driven the car any distance yet. Here's the question: Is this something to be concerned about? Thanks. ...Rickker

POST 2Original post

is your gas cap on tight? also have you filled up the gas tank recently, like topped it off?

POST 3 / ORIGINAL POSTEROriginal post

Quotes source post: 8599093

Yes, I filled the tank earlier the same day, then drove about half a tank, and the light came on just as I got home. I'm pretty sure I turned the gas cap for about 3 or 4 clicks after refueling.

POST 4Original post

I had this code before, with durametric on..... I checked the gas cap, and it wasnt even on.

POST 5Original post

yeah if it didnt come back, topping it off probably filled a vent line causing the code

POST 7Original post

You might need a new cap... there are many newer revisions than what comes on a stock 1999 car.

POST 8Original post

Sorry to derail the conversation here but if you were to clear up this code by disconnecting the battery, will the history of the code still be stored and therefore read by the Durametric? Or is it gone forever?

POST 9Original post

Quotes source post: 8599752

The code is erased when 12V battery power is removed from the engine controller such as would be the case when the battery was disconnected. Do *not* ever disconnect the battery with the engine running, the key on, or the key even in the ignition! Anyhow, the code can not be retrieved once battery power is removed and reapplied (or the code is erased by the use of a code reader/eraser tool). However, there can be a record of sorts that something was 'cleared'... The engine controller can keep track of how many miles (km actually, though limited to 65535km) the car was driven since the check engine light was cleared (and this may be reset when battery power is removed too). There is another km counter than is used to count the number of km the car has driven since the check engine light came on. A sophisticated code reader (Durametric should qualify) can read these values if the engine controller supports them. (The are Mode 1 Pids 0x21 and Pid 0x31 IIRC.) Sincerely, Macster.

POST 10 / ORIGINAL POSTEROriginal post

FWIW, I drove around for an hour or so today, and the CEL has not come on again. So hopefully, this will be the end of it.

POST 11Original post

Quotes source post: 8600235

Thanks for the explanation. Yeah I've never disconnected the battery when the car is on or the key is in the ignition. But the reason I asked was because I while back I got a MAF code so I cleaned it out and to get rid of the CEL I disconnected the battery. It never came back but I was wondering if when the time comes that I hook it up to the Durametric, would I still be able to see the history of the codes? I guess not so at least I know now. Thanks again!

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