7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHP 1115 code - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Check every drive cycle and will
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
The O2 heater has a monitor and is checked every drive cycle and will set a permanent code (and CEL) on the 2nd drive cycle if not corrected.
P 1115 code - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'Check every drive cycle and will' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check every drive cycle and will' (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
The O2 heater has a monitor and is checked every drive cycle and will set a permanent code (and CEL) on the 2nd drive cycle if not corrected.
P 1115 code - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Test heater, unplug the connector
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
When testing the heater, unplug the connector from the O2 sensor.
P 1115 code - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use digital multimeter
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
Sorry, I should have mentioned to measure this with the ignition off, and using a digital multimeter.
P 1115 code - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use durametric
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.
P 1115 code - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.
7 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
986Forum: 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
I don't have a CEL, just a stored code which hasn't come back and no change in driveability so I'm not too concerned.
I discovered a P 1115 code when I hooked up the Durametric. No CEL, just a stored code. It reads as a fault in the bank 1 O2 sensor heating before Cat. The resistance shows 486 for that sensor, all 3 other sensors have a resistance value of 64. I'm pretty convinced the one O2 sensor is bad.
Am I missing something?
I was using the durametric. 3 sensors showed 64, the other sensor was around 400. I'm not sure how the durametric measures the resistance with the engine runing, but thats what the numbers were. I don't have a CEL, just a stored code which hasn't come back and no change in driveability so I'm not too concerned.
Sorry, I should have mentioned to measure this with the ignition off, and using a digital multimeter. I'm not sure what the Durametric tool will read for an actual value of the heater resistance on your car (with DME 7.2). I never explored that on my 987 (DME 7.8_40).
The O2 heater has a monitor and is checked every drive cycle and will set a permanent code (and CEL) on the 2nd drive cycle if not corrected. Since it's a stored code and you reset it, and it hasn't come back yet, you should be OK. You may want to check it in a few weeks to see if there's a stored code again.
You're right that it doesn't impact driveability -- it's only used to (as you know) to heat the O2 sensor up to its operating temperature and then shuts off.
Thx for posting your problem as it's making me curious -- I'm going to play around with my Durametric tool to see what it provides for actual values with the O2 sensors.
Regards,
paul...
Next time I'm under the car I'll measure the resistnce manually to see how it correlates with the durametric. I have a slight oil leak from the cam cover that drips onto the bad sensor, I wonder if thats whats causing it to fail.
That's possible an oil leak could cause the problem since the dialectic properties decreases as the oil gets dirty (conducts better). When testing the heater, unplug the connector from the O2 sensor.
Regards,
paul...
This is a source reference. Confirm exact model applicability in the original material.
