Planet-9

987.2 error reading - "oil pressure monitoring defective 1/1"

Add to repair workspace

New repair projectOpen repair workspace

Original source

8 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCH987.2 error reading - "oil pressure monitoring defective 1/1"

Leading reported evidence

Use port up

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
At that point I'll have a Durametric with only one used port up for grabs.
Original post Read captured discussion
987.2 error reading - "oil pressure monitoring defective 1/1"

Frequently discussed work

Replace diy

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
I did some Google searching and saw it could be a bad connector from the oil pressure sender, or may need a new sender, which is a ~$60 part that can be replaced DIY but is a bit hard to access.
Original post Read captured discussion
987.2 error reading - "oil pressure monitoring defective 1/1"

Read full discussion summary

Leading evidence: 'Use port up' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace diy' (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 · 1 partial discussions

Compare 2 other evidence results

Replace diy

Suggestion or failed attempt

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
I did some Google searching and saw it could be a bad connector from the oil pressure sender, or may need a new sender, which is a ~$60 part that can be replaced DIY but is a bit hard to access.
Original post Read captured discussion
987.2 error reading - "oil pressure monitoring defective 1/1"

Use scanner frequently

Suggestion or failed attempt

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
I'd use the scanner frequently to monitor for a possibly failing oil pressure sender.
Original post Read captured discussion
987.2 error reading - "oil pressure monitoring defective 1/1"

Frequently discussed actions (3)

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

Replace diy

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
I did some Google searching and saw it could be a bad connector from the oil pressure sender, or may need a new sender, which is a ~$60 part that can be replaced DIY but is a bit hard to access.
Original post Read captured discussion
987.2 error reading - "oil pressure monitoring defective 1/1"

Use port up

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
At that point I'll have a Durametric with only one used port up for grabs.
Original post Read captured discussion
987.2 error reading - "oil pressure monitoring defective 1/1"

Use scanner frequently

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
I'd use the scanner frequently to monitor for a possibly failing oil pressure sender.
Original post Read captured discussion
987.2 error reading - "oil pressure monitoring defective 1/1"

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.

Planet-9: 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: 20261026T213932Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hi all I've had my 2009 Cayman 2.9 manual for just over a year. It has ~87K miles. During normal driving yesterday the following message came up. "Oil pressure monitoring defective 1/1". Any idea how serious this is? I did some Google searching and saw it could be a bad connector from the oil pressure sender, or may need a new sender, which is a ~$60 part that can be replaced DIY but is a bit hard to access. I haven't had any other issues with the car. Has anyone else had this issue? If I drive the car before I get this fixed, is there anything specific I should be on the lookout for (engine noises, etc.) to make sure I don't do damage to the car?

POST 2Original post

And wouldn't you know it, I went to drive it a couple hours after I posted that question and am no longer getting the error. Still, any thoughts / comments / advice would be welcome.

POST 3Original post

I'd get a good Porsche specific scanner - like Durametric Enthusiast or several other brands mentioned frequently. They do more than check and clear DTC codes (which are mainly emissions problems). They scan for many systems faults. This type of diagnostic tool is very useful for Porsche owners, even if you aren't a DIYer. I'd use the scanner frequently to monitor for a possibly failing oil pressure sender.

POST 4Original post

I have a Durametric enthusiast edition, unless they updated it you cannot activate the ABS pumps as Don has noted is a function available on the Foxwell . If that's still true I'd choose the Foxwell , no laptop either. Why is that important? Not only for a more complete flush but hopefully a positive advantage in bleeding which I find the Brembo 's somewhat resistant to. Every easy flush leads to lots of bleeding so next year, it's the 11 mm crow's foot I received already from amazon and a Foxwell added as "the cost of the flush" . At that point I'll have a Durametric with only one used port up for grabs.

POST 5Original post

I'm sure you can activate ABS with the enthusiast.I haven't updated the app in many years. I know I tried it once while flushing brakes. Then I decided it wasn't worth the hassle. I wouldn't do it unless there was something repaired or replaced in the closed brake system (excluding pads and rotors).

POST 6Original post

Good to know, I'll take your word for it on the pumps but now I'll look into actuating them with the tool I have. The menu on the Foxwell is more succinct than the Durametric can be at times, it's possible it's in a sub menu I have never visited.

POST 7Original post

IIRC its in a nonintuitve place. Also it depends on the model and year, but I think all 987s are covered.

POST 8Original post

Ah, found it after a few minutes searching. Under Stability Management- PSM / Activations you can individually activate all the pumps for bleeding (for a max of 5 minutes within 20 minutes). I didn't try this so I can't swear it works.

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