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YOUR RESEARCHThe mouse that roared (p0450 and p0450) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Disconnect i need
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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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
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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
Also so far no codes but because battery was disconnected I need to car to get some miles to confirm.
The mouse that roared (p0450 and p0450) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Disconnect i need' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect i need' (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.
Performed · outcome unconfirmed · Original poster
installed new radio and Bluetooth which involved taking apart dash to hands free mic - self (6)
The mouse that roared (p0450 and p0450) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace already
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 had already replaced the vent valve as google tells you that is the most common symptom.
The mouse that roared (p0450 and p0450) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace top, crankshaft position sensor etc
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 have done a lot of work myself including replaced top, crankshaft position sensor etc.
The mouse that roared (p0450 and p0450) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Replace vent valve
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
Hi all, have a 986 S 146,000 (100,000 me) runs great but had trouble filling tank so replaced the vent valve.
The mouse that roared (p0450 and p0450) - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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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.
5 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.
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Generation: 20261027T035758Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all, have a 986 S 146,000 (100,000 me) runs great but had trouble filling tank so replaced the vent valve. No dice. So in search of a leak due to the codes p0450 and. p0455 I removed battery & support and find a mouse chewed through what I believe is the wiring to the EVAP sensor. See picture. And it is crazy how dirty it is but I will address that!
Questions, am I correct that this will throw those codes and how difficult is it to replace the wiring harness that was eaten? I have done a lot of work myself including replaced top, crankshaft position sensor etc. so have some ability. Anyway, can I repair thiss myself? Many thanks in advance!
I'd like to contribute... to help. However, when I spend more time trying to navigate huge ****************ing pics... I'm out.
Someone with more patience will chime in. Good luck with the fix.
I don’t know for sure but that harness may be connected to the body harness which goes all the way back to the trunk. Replacing the body harness isn’t what you want to do. I would splice in new wire and redo the ends all the way to the connector on the fuel tank.
All, resolved. Must have been the wires to the EVAP sensor. I spliced the two wires that the mouse chewed and that fixed my main issue - car would not take gas. I had already replaced the vent valve as google tells you that is the most common symptom. Also so far no codes but because battery was disconnected I need to car to get some miles to confirm. That said very happy. Also no apologizes, to big picture guy, that is how this forum takes them and they look fine on a mobile phone
For the record the car (2002 Boxster S manual) again is at 146,000 miles and 100,000 by me. Owned car since 2008. I autocrossed it for a couple years so it has been driven hard. Never had an issue the IMS, the seal was replaced very early in its life by a dealer. No oil leaks! And no issues with any system everything works.
As a high milage car some info for others who have issues, some of mine and resolution (with my view of difficulty scale 1-10) I do not have a lift or access to one.
1. Car randomly stopped running - solved by replacing the crankshaft position sensor - hard to get to sensor but doable. (8)
2. Low oil pressure light - dealer solved by replacing a relief spring in the system that broke.
3. torn rear windows so needed new top top - replaced with help from the wife. (8)
4. Serpentine belt failed - easy fix just pop access door behind the car seats and use a breaker bar to release tension. (3)
5. clutch - dealer fix
6. fuel vent valve - self (7)
7. installed new radio and Bluetooth which involved taking apart dash to hands free mic - self (6)
8. left rear wheel bearing - dealer
Brakes and oil changes by self.
I have always wait for the engine to be warmed up to operating temp prior to running over 3000 rpm.
These are great cars. They do not like to sit and need to be driven!
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