4 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH1999 Boxster Engine Management Light - advise needed - Page 1 - Boxster/Cayman - PistonHeads UK
Reported or suspected cause
dme attempting
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
When I talked to the tech about this he said it was the DME attempting to find some fueling setting that would result in the O2 sensor readings the DME wanted to see.
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
Not had it myself but as there's no toothed belt (i.e.cam/timing belt) I'd suggest it's a variocam issue, but you really need it on a Porsche diagnostic machine, which can also be used to disable/activate the variocam system on each bank whilst the engine's running to check whether they're both working properly.
Leading evidence: 'dme attempting' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'dme attempting' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check whether they're both working properly' (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 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
Not had it myself but as there's no toothed belt (i.e.cam/timing belt) I'd suggest it's a variocam issue, but you really need it on a Porsche diagnostic machine, which can also be used to disable/activate the variocam system on each bank whilst the engine's running to check whether they're both working properly.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check whether they're both working properly
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
Not had it myself but as there's no toothed belt (i.e.cam/timing belt) I'd suggest it's a variocam issue, but you really need it on a Porsche diagnostic machine, which can also be used to disable/activate the variocam system on each bank whilst the engine's running to check whether they're both working properly.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
dme attempting
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
When I talked to the tech about this he said it was the DME attempting to find some fueling setting that would result in the O2 sensor readings the DME wanted to see.
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.
4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
An engine management light has appeared on my Dash. I have taken it in to have diagnostic tests and whilst the garage was unable to provide me with any fault codes stated the text associated was "Valve timing / solenoid issue, "tooth belt out of position Bank 1", "Cam Shaft adjustment Bank1", "Misfire - 1/2/3 RHS" has anyone had a similar problem and if so what was the conclusion?
Not had it myself but as there's no toothed belt (i.e.cam/timing belt) I'd suggest it's a variocam issue, but you really need it on a Porsche diagnostic machine, which can also be used to disable/activate the variocam system on each bank whilst the engine's running to check whether they're both working properly.
cGriffin said:
An engine management light has appeared on my Dash. I have taken it in to have diagnostic tests and whilst the garage was unable to provide me with any fault codes stated the text associated was "Valve timing / solenoid issue, "tooth belt out of position Bank 1", "Cam Shaft adjustment Bank1", "Misfire - 1/2/3 RHS" has anyone had a similar problem and if so what was the conclusion?
If one can place any confidence in the error texts without the error codes, reads like a VarioCam solenoid/actuator has gone bad.
That the engine is misfiring suggests a hard failure. (When my 02 Boxster suffered this problem it did not manifest any misfires. But I monitored short term fuel trims for a bit and they were going wild. When I talked to the tech about this he said it was the DME attempting to find some fueling setting that would result in the O2 sensor readings the DME wanted to see. The tech went on to say that after awhile the fueling could get bad enough to result in misfires.)
As I said above, my car's engine didn't misfire and in fact after I shut off the engine and restarted it managed to drive the car 30 miles home - taking it easy -- with no issues. But I got the car in the shop ASAP the next day. Had both the solenoid and actuator -- on the bank the error codes pointed to -- replaced.
This is a source reference. Confirm exact model applicability in the original material.
