20 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHStarting a 986 after storage - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Leading reported evidence
Clean contact in the fuel pump relay
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
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.
Starting a 986 after storage - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary
Leading evidence: 'Clean contact in the fuel pump relay' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'probably fuel or spark' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check back and see if i can help you out' (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 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
If the car was running fine before the problem is probably fuel or spark.
Starting a 986 after storage - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check back and see if i can help you out
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
I am on my computer multiple times a day so I will check back and see if I can help you out.
Starting a 986 after storage - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check fuel pump
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 · Original poster
I don't have a multi-meter handy to check the fuel pump that way.
Starting a 986 after storage - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check fuses
Suggestion or failed attempt
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 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.
Starting a 986 after storage - 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.
20 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.
Hi all,
I've a 2004 Boxster S. It's been sitting in my garage (un-driven) for various reasons (I know?!) for about 1 year. I've had it on trickle charge the whole time. I tried to start it this weekend but it won't catch. When you turn on the ignition I get all the dash lights, the needle rises a bit, the fuel gauge shows 1/2 and then when I try to start it, it cranks (is that the right word) strongly as the battery is good, but it doesn't start.
I tried the following:
* Added 10L of good fuel. Gauge now shows 1/2.
* Turned on and let sit for 30s before trying to start (friend recommended this).
* Pressed throttle to floor with car off, released throttle and then tried to start.
* Turned on ignition, pressed throttle to the floor and tried to start.
Nothing worked although it does crank strongly. The engine just doesn't catch.
I'm wondering if it is fuel related (maybe old fuel????).
It's actually quite hard to get the car out of the garage as it is down a 11% slope out onto a narrow street so hard to bring it to a shop.
Anyway - looking for advice. Would be nice to get it going again as its a fantastic drive. When I last drove it, it was in perfect condition. Shame I had to leave it so long.
Thanks for reading and for any advice.
Personally I have never had a problem with fuel going so bad after one (or two) years that the car won't start. If the car was running fine before the problem is probably fuel or spark. Is it possible that you have a rodent problem? There are a lot cases of rodents chewing through wire insulation leading to electrical component failure. Check fuses.
Try pushing the car vigorously back to front like you are trying to push it up a speed bump. You want to introduce a wave into the fuel tank.
This problem can occur when the contacts inside the fuel pump motor get corroded. Getting the fuel to move can just slightly turn the impeller and get the fuel pump to make solid electrical contact.
I haven't seen any rodents around the garage (or house in general). It's pretty clean with nothing really lying around to attract them except the car and some bikes. But anything is possible I guess. I'll check the fuses. It is a good idea ot check them anyway although the car cranks just fine but fails to catch.
Interesting suggestion. I'll see what I can do to make the fuel move around. A wave is going to be an interesting challenge
Suspension is pretty hard though I guess so will see where I can get to.
I checked mine a bit Heath Robinson kind of way. I removed the battery and tray connected a multi meter across fuel pump connections got some jump leads connected up the battery and listened /felt when ign was turned on - mine was dead but never had a prob till parked up re - COVID
Thanks. I finally had some time today to try the car again. I wasn't really able to give a wave of fuel going. I Wonder would jacking it up on one side help? Which wheel if so? It's left hand drive (if that matters?). I don't have a multi-meter handy to check the fuel pump that way. I guess I can try call roadside assistance and see if they can help.
Can you hear the pump whirr when you turn on the ignition without starting? You should be able to hear the fuel pump priming and building pressure. If you can't then start there.
I just checked mine and you will need to listen very carefully as it's a faint noise.
OK. I too have a similar problem. Last year at this time, turned the key and no issues. This year, turn the key, starts right up .... for about three seconds, then dies. I can nurse it alive longer than 3 seconds but as soon as I stop nursing the gas pedal, it dies.
Any ideas?
Thanks
Get a can of spray starting fluid.
Remove your air cleaner spray the starting fluid into the intake.
Then crank the engine and see if it will at least fire.
Let us know what you find.
Also what year is the car and how many miles????
First thing:
Test your fuel pump relay and your fuel injector relay. To make sure they are functioning correctly. Or replace them.
If that does not fix the problem then the next step is to test the fuel pressure at the fuel rail.
What year is the car????? How many miles????
Go through the steps I outlined then we will go from there..
Did the battery go dead or did you disconnect it during the storage period????
Do you have a check engine light on????
OK. I cleaned the contact in the Fuel pump relay. Same symptoms (fires right up then dies after 2 seconds). Jumped out the relay ( when jumped, I can hear the fuel pump come on). Restarted - same symptoms.
Any ideas?
Battery did not go dead. I had it on a Porsche charger while in storage.
No CEL on.
I will clean up the fuel injector relay now and report back. Thanks for the return replies
Where do I find the injector relay??
Ok so not a ECU/DME relearning issue.
When you have the car running does it backfire??? miss?? anything like that????
When it dies is it just like it is running out of gas???? or something different???
The reason I ask that is:
If the car was stored with fuel that contains Ethanol...Ethanol is Hygroscopic (draws moisture from the air)....so your fuel could have water in it. If the car is missing,backfiring, acting weird while it is running then that could be the issue.
If the car was stored with Non-Ethanol fuel and the car runs fair for the few seconds but just seems to run out of fuel when it dies....
Then that seems more like just a fuel delivery issue.
I am on my computer multiple times a day so I will check back and see if I can help you out.
This is a source reference. Confirm exact model applicability in the original material.
