24 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHCheck Engine Light
Leading reported evidence
Check items such as gas cap and oil cap being
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 checked items such as gas cap and oil cap being on tightly.
Leading evidence: 'Check items such as gas cap and oil cap being' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'cracked hose causing a leak.....anyway i change my maf' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check engine' (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.
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.
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
Then I had a couple of O2 sensors changed based on the codes.
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 just got it back from the dealer after having one of the cat converters replaced with a new unit due to a Check Engine Light notification (paid by the seller), and a pre purchase inspection.
cracked hose causing a leak.....anyway i change my maf
Suggestion or failed attempt
No successful repair reported for this finding.
0
Identified cause
1
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 suspect 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.
Suspected cause
my mechanic replaced the MAf thinking it could be the problem but it does not change anything, the problem was a cracked hose causing a leak.....anyway i change my maf for nothing and cant return the new one
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
my mechanic replaced the MAf thinking it could be the problem but it does not change anything, the problem was a cracked hose causing a leak.....anyway i change my maf for nothing and cant return the new one
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
my mechanic replaced the MAf thinking it could be the problem but it does not change anything, the problem was a cracked hose causing a leak.....anyway i change my maf for nothing and cant return the new one
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 just got it back from the dealer after having one of the cat converters replaced with a new unit due to a Check Engine Light notification (paid by the seller), and a pre purchase inspection.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
cracked hose causing a leak.....anyway i change my maf
No successful repair reported for this finding.
0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect 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.
Suspected cause
my mechanic replaced the MAf thinking it could be the problem but it does not change anything, the problem was a cracked hose causing a leak.....anyway i change my maf for nothing and cant return the new one
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.
24 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
6SpeedOnline: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
The CEL was resolved by MY discovering that the tech at the $180/hr Porsche dealership had installed the pre and post cat O2 sensors in the wrong positions.
On my 2000 Carrera 2 cab. I just got it back from the dealer after having one of the cat converters replaced with a new unit due to a Check Engine Light notification (paid by the seller), and a pre purchase inspection. They cleared the CEL, and it received a clean bill of health on the PPI, so I purchased it. They returned the car to me with very little gas in it. I drove it 10 miles back from the dealer and loaded it on the trailer for the journey home. Upon arrival, I added 2 gallons of unleaded regular (I realize premium is required) to the tank to be sure I would make it to the gas station. Upon it's next outing and driving very gently while heading to the gas station, after 5 miles the Check Engine Light reappeared. I checked items such as gas cap and oil cap being on tightly. I checked the oil level. All were correct. Any ideas as to why the CEL so soon after the cat was replaced? Should I try to disconnect the battery (I have an aftermarket stereo system installed) to try and clear the light? Could the regular unleaded in a cold car have any effect due to insufficient octane rating? There was no manual delivered with the car, so I am awaiting delivery from previous owner. Any help would be greatly appreciated. Thanks.
Category:
Engine - Intake/Fuel
Price:
$30
Private or Vendor Listing:
Private Listing
Part fits:
Porsche 911 996 Turbo
Location (State):
Can-QC
Item Condition:
Used
Shipping Information:
Item can be shipped
Hi i just bought a porsche 996 turbo 2001 and the car had a check engine when i bought it.
my mechanic replaced the MAf thinking it could be the problem but it does not change anything, the problem was a cracked hose causing a leak.....anyway i change my maf for nothing and cant return the new one
so i have a Used Bosh MAF (MASS AIR FLOW) for sale, the maf is in perfect working condition
when my mechanic found the trouble i put back this maf for a week and the car was running perfectly so absolutely nothing wrong with it, it work as it should. i just decide to let the new one in the car since i cant return it
it's an oem bosch maf, PART NUMBER: 996 606 124 00
Price 30$ usd (I'm from Montréal)
Thanks Mike, I have a code reader on the way. I appreciate the help. If it is indeed an oxygen sensor, are these standard Bosch units, or do they need to be purchased from the Porsche dealership? In your opinion where is the best place to buy parts? Thanks again.
Thanks again geetee. Are the before and after O2 sensors the same, or different part numbers? I will look up the names you suggest. I really appreciate the help. Jim
I'm not sure if they are actually different and interchangable between years but before and after have different part numbers 99, 00-01, 02-04 all have different part numbers also.
edit: some places list 99-01 with same part numbers
Quote:
I had several CELs in the past. Every time it appeared, I had it reset. Then I had a couple of O2 sensors changed based on the codes. CEL disappeared for a few days. Then CEL appeared again and despite clearing it out several times, it always came back on after a day. I got tired of it and left it as it is. After 3 weeks of leaving the CEL on without resetting, it mysteriously disappeared. A couple of weeks had already passed and it never reappeared again. Knock wood.
The CEL was resolved by MY discovering that the tech at the $180/hr Porsche dealership had installed the pre and post cat O2 sensors in the wrong positions. In other words, the pre cat sensor in the post cat position, and vis versa. Amazing.
a loose gas cap can trip CEL, ask me how I know, and I thought that may have been the culprit so removing the neg battery cable for a few mins shut it off never to return....if it's an O2 sensor it'll light up again upon driving it. Try that
Mine comes on periodically and disappears the next day. Three weeks or more go by before it repeats the pattern. I just swear at it and tell it to go away.
This is a source reference. Confirm exact model applicability in the original material.
