8 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHReplacement Engine Problems
Leading reported evidence
Install engine and started it
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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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.
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Performed · outcome unconfirmed · Original poster
Fast forward to the problems > Installed the engine and started it.
Leading evidence: 'Install engine and started it' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check light is flashing' (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
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Suggestion
if the check light is flashing, that mean you have a misfire.
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.
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.
Pelican Parts: 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: 20261026T212127Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Hi all. A little background on my project: The engine went out on my '99 996 so I started looking around for a replacement engine. I found an engine from a local Porsche shop in NY that only has 8500 miles and has been stored for several years. The price was right so I bought it and had it shipped to California.
Fast forward to the problems > Installed the engine and started it. Had some smoke initially but eventually cleared up. The first thing I noticed was that there is a definite miss while idling. I placed my hand over the exhast tips and I can feel a pulsation on the left side. There is also a lot of smoke that comes out when I start revving the engine at higher rpms. The smoke disappears when idling. At this point I'm already worried about the overall health of this low mileage engine. I then performed a compression test on all cylinders and all cylinders had about 125-130 psi except of #2 which only had about 100 psi. All plugs have nice burns on them and absolutely no oil present on the spark plugs. This is why it perplexes me because if the engine is burning oil at higher rpms, then the plugs should be fouled, or at least be very dark. Likewise, if the engine has a low compression cylinder, isnt it also true that the plugs will be fouled and have oil residue on them? With all this happening, the check engine light came on and it's been flashing ever since. Of course, I dont have a reader so I have no idea what the error codes are.
Do any of you guys think I might be missing something or is this pretty much an indication of a bad engine? I would like to exhaust all avenues before I call the shop that sold me the engine and tell them the situation.
Thanks in advance.
Well, got it to run right. It seems that one of the injectors was leaking. Replaced that with one of my spares from the old engine and this essentially new engine runs like it should with only 8,000 miles. I initially had a problem with my cats because of all the gunk that the old motor was dumping on them. Drove the car about 200 miles and passed SMOG with flying colors.
