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Cylinder 2 misfire

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Original source
14 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHCylinder 2 misfire

Leading reported evidence

Check codes and only found the pending code

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

Checked for codes and only found the pending code but nothing remaining.

Cylinder 2 misfire
Read full discussion summary

Leading evidence: 'Check codes and only found the pending code' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check codes and only found the pending code' (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 · 14 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace indy said it was not working

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

The car is in the shop getting the variocam tentioner replaced, Indy said it was not working when I took it to him to diagnose.

Cylinder 2 misfire

Run full dianostics

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

Second shop ran full dianostics to confirm nothing broken or bent including leak down.

Cylinder 2 misfire

Check compression

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

Mine has been to a total of 3 indys and 2 certifies Porsche dealerships and still nothing, my 911 is a 04 40th Ae with 156k I everything that everyone has said its been done, coils, injectors, sparkplugs, leak check, compression test...

Cylinder 2 misfire

Clean additive in it

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

Yeah putting atf in the oil for a short period before an oil change can clean crap out of lifters as there's a cleaning additive in it, this works quite well apparently I just worry what it could do to the bearing surfaces and bored etc, anyone know if it's safe, I've got a stick lifter I could do with treating !

Cylinder 2 misfire
Frequently discussed actions (9)

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

Check codes and only found the pending code

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 · Original poster

Checked for codes and only found the pending code but nothing remaining.

Cylinder 2 misfire

Check compression

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

Mine has been to a total of 3 indys and 2 certifies Porsche dealerships and still nothing, my 911 is a 04 40th Ae with 156k I everything that everyone has said its been done, coils, injectors, sparkplugs, leak check, compression test...

Cylinder 2 misfire

Clean additive in it

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

Yeah putting atf in the oil for a short period before an oil change can clean crap out of lifters as there's a cleaning additive in it, this works quite well apparently I just worry what it could do to the bearing surfaces and bored etc, anyone know if it's safe, I've got a stick lifter I could do with treating !

Cylinder 2 misfire

Clean crap out of lifters as there's a

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

Yeah putting atf in the oil for a short period before an oil change can clean crap out of lifters as there's a cleaning additive in it, this works quite well apparently I just worry what it could do to the bearing surfaces and bored etc, anyone know if it's safe, I've got a stick lifter I could do with treating !

Cylinder 2 misfire

Inspect valves and lifters

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

First shop wanted to drop motor and inspect valves and lifters.

Cylinder 2 misfire

Replace can

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

Yeah putting atf in the oil for a short period before an oil change can clean crap out of lifters as there's a cleaning additive in it, this works quite well apparently I just worry what it could do to the bearing surfaces and bored etc, anyone know if it's safe, I've got a stick lifter I could do with treating !

Cylinder 2 misfire

Replace chain guides and tentioner and silonoid

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

My car had no power tho, I mean No Power, Getting it back soon and I hope its fixed, there replacing chain guides and tentioner and silonoid.

Cylinder 2 misfire

Replace indy said it was not working

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

The car is in the shop getting the variocam tentioner replaced, Indy said it was not working when I took it to him to diagnose.

Cylinder 2 misfire

Run full dianostics

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

Second shop ran full dianostics to confirm nothing broken or bent including leak down.

Cylinder 2 misfire
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.

14 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

2 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

No change.

No unique explicit quoted action; no causal link assigned

Generation: 20261026T222516Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

So I had the dreaded p0302 today. Was driving to a store when the car began to idle rough. I heard the misfire... Got a CEL... Which then cleared it self and so did the misfire. Car was fine on the way home. Checked for codes and only found the pending code but nothing remaining. So should I cry and sell the car? :-)

POST 3Original post

Just went through this on P0306 cylinder 6. New coils, plugs. Checked plugs and coils again, all connections and switched 5 and 6 coil. No change. Flipped injectors. No change. Two shops to run it down. First shop wanted to drop motor and inspect valves and lifters. Second shop ran full dianostics to confirm nothing broken or bent including leak down. Then drained two quarts of mobile one and added two quarts ATF. Told to run it 100-200 miles and then drain and refile with 0w40. Intermittent lifter or valve sticky was their call. This after ruling out coil, plugs, injectors and connections. Post ATF drain now 200 miles and no codes. Running and idle smooth.

POST 4 / ORIGINAL POSTEROriginal post

The car definitely needs Coil packs... I knew that from the PPI when I bought it... 2 years ago.... I think it's time!

POST 5Original post

Was it raining ? That would hint at cracked coils. Plugs ,Tubes, seals at the same time? Note the ATF fix mentioned above - 2 qts. very roughly 20-25% ATF in the sump.

POST 6Original post

Quotes source post: 14165432

Mine has been to a total of 3 indys and 2 certifies Porsche dealerships and still nothing, my 911 is a 04 40th Ae with 156k I everything that everyone has said its been done, coils, injectors, sparkplugs, leak check, compression test... etc etc so has the cel come back? the issue with mine is that it only does it at Idle, while driving the p0302 cel doesn't come on but when i come to a stop and the car idles she starts sputtering and cel starts flashing. but once I get back on the road and RPMs go above 2k the cel automatically goes away if I rev the engine while at idle the cel goes away, if while driving the cel comes on if I turn the car off and back on the cel goes away.

POST 8Original post

Quotes source post: 14269816

Did you try the ATF as mentioned above?

POST 9Original post

400 miles all good. Injector and ATF treatment at the same time so intermittent check engine light from sticky lifter or injector? ATF cant hurt.

POST 10Original post

Quotes source post: 14269901

My car was doing this exact same thing. But Mine was showing multiple misfires at the same rpm across cylinder 123. I could clear the code and drive at highway speeds and everything was normal. But as soon as I slowed the rmp drop and boom cel light up and blinking, as soon as I would give gas, cel light disappeared. The car is in the shop getting the variocam tentioner replaced, Indy said it was not working when I took it to him to diagnose. Timing was off at idle and misfire, but when given gas the misfire went away, but there was a deviation in timing that was out of spec. The Indy tried to activate the variocam tentioner and it would not respond. My car had no power tho, I mean No Power, Getting it back soon and I hope its fixed, there replacing chain guides and tentioner and silonoid.

POST 12Original post

mine is 156k this weekend i'm going to do the ATF and the injector cleaner.... and see what happens

POST 14Original post

Yeah putting atf in the oil for a short period before an oil change can clean crap out of lifters as there's a cleaning additive in it, this works quite well apparently I just worry what it could do to the bearing surfaces and bored etc, anyone know if it's safe, I've got a stick lifter I could do with treating !

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