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YOUR RESEARCHReplaced ripped oil filter tube, car now misfires.
Leading reported evidence
Check things again, the cold start was normal/good
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Performed · outcome unconfirmed · Original poster
Here�s a weird thing that happened though, I left it unplugged by accident when I double checked things again, the cold start was normal/good and but those lights came on so I know I forgot to plug the MAF in.
Replaced ripped oil filter tube, car now misfires.
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Leading evidence: 'Check things again, the cold start was normal/good' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check any other vacuum leaks and double' (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.
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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.
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Performed · outcome unconfirmed
and b, the dme has been compensating and needs to be reset (battery disconnected)
Replaced ripped oil filter tube, car now misfires.
Disconnect battery
Performed · outcome unconfirmed
No successful repair reported for this finding.
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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.
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Performed · outcome unconfirmed · Original poster
Disconnected the battery for about 2 hours, car runs great, but cold start hesitates momentarily but once cold start sequence is done, it idles fine.
Replaced ripped oil filter tube, car now misfires.
Suggestion
If no other vac leaks, disconnect the battery for a few minutes for a reset, Let the car relearn by leaving key in 'on position' for a minuter or 2 before starting it.
Replaced ripped oil filter tube, car now misfires.
Replace oil filler tube
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
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Performed · outcome unconfirmed · Original poster
Oil filler tube was replaced with with an LN �The Antidote� filler tube.
Replaced ripped oil filter tube, car now misfires.
Smoke-test )
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
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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
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Replaced ripped oil filter tube, car now misfires.
Check filler tube though� it�s pretty hard
No successful repair reported for this finding.
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Discussions that contain suggestions
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Suggestion · Original poster
Battery was disconnected so that the alternator could be moved to make the install easier, so I�m not sure if it�s a relearning thing� I don�t remember bumping or disconnecting anything except the coolant line attached to that bracket that usually breaks lol� will double check the filler tube though� It�s pretty hard to not install the antidote correctly though with the way the O-rings are and the way it�s assembled� But who knows.
Replaced ripped oil filter tube, car now misfires.
Check things again, the cold start was normal/good
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
Here�s a weird thing that happened though, I left it unplugged by accident when I double checked things again, the cold start was normal/good and but those lights came on so I know I forgot to plug the MAF in.
Replaced ripped oil filter tube, car now misfires.
Disconnect anything except the coolant line attached
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 · Original poster
Battery was disconnected so that the alternator could be moved to make the install easier, so I�m not sure if it�s a relearning thing� I don�t remember bumping or disconnecting anything except the coolant line attached to that bracket that usually breaks lol� will double check the filler tube though� It�s pretty hard to not install the antidote correctly though with the way the O-rings are and the way it�s assembled� But who knows.
Replaced ripped oil filter tube, car now misfires.
Suggestion
If no other vac leaks, disconnect the battery for a few minutes for a reset, Let the car relearn by leaving key in 'on position' for a minuter or 2 before starting it.
Replaced ripped oil filter tube, car now misfires.
Disconnect so
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 · Original poster
Battery was disconnected so that the alternator could be moved to make the install easier, so I�m not sure if it�s a relearning thing� I don�t remember bumping or disconnecting anything except the coolant line attached to that bracket that usually breaks lol� will double check the filler tube though� It�s pretty hard to not install the antidote correctly though with the way the O-rings are and the way it�s assembled� But who knows.
Replaced ripped oil filter tube, car now misfires.
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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.
16 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.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
Noticed car was acting erratically with hesitations here and there, found there was a vacuum leak/rip at the oil filler bellow. Replaced it, now the car has a hard time starting when cold. Car will crank, turnover, then stall. Try again, same thing except it runs for 1-2 seconds before stalling. 3rd try I�ll give it some throttle to get the RPMs up and it hesitates but will stay running with some throttle. If I go to pull away from the parking spot it sputters and hesitates.
Here�s the weird thing though, once the thermostat gets to around 100� the car runs MINT. No throttle hesitations, warm and hot starts fine. All issues are only cold starting. It just does not like cold starting. No vacuum leaks anywhere else (smoke tested). Car is bone stock 2004 Carrera. Oil filler tube was replaced with with an LN �The Antidote� filler tube.
Thanks in advance for any help.
Might want to double check for any other vacuum leaks and double check your work on filler tube.
If no other vac leaks, disconnect the battery for a few minutes for a reset, Let the car relearn by leaving key in 'on position' for a minuter or 2 before starting it. See if that helps...
Battery was disconnected so that the alternator could be moved to make the install easier, so I�m not sure if it�s a relearning thing� I don�t remember bumping or disconnecting anything except the coolant line attached to that bracket that usually breaks lol� will double check the filler tube though� It�s pretty hard to not install the antidote correctly though with the way the O-rings are and the way it�s assembled� But who knows.
It is a solid filler tube with no bellow component. It sits upright and doesn't sit in the air filter spot. I have it with a track drain to the UAOS. The maker is 9ii.pro
Did you get the antidote with the drain pipe for use with UAOS or the plain one. If the one with the drain, is/was it properly sealed?
Funny thing is, if the car ran fine before (with the leak from old oil filler bellow) but runs poorly with a fully sealed system, then a, it should run well again with the oil filler cap removed (or at least allowing air to go through. did you try that?
and b, the dme has been compensating and needs to be reset (battery disconnected)
Two thoughts - you must have introduced a new vacuum leak. This could be from a defective filler tube or maybe incorrect seating, or a new crack. Smoke test will be your friend.
The second thought is you forgot to plug something back in. I know I have done work before where I removed the air box and the car ran rough only to discover I forgot to plug the MAF connector in.
One time when I did this, I accidentally knocked the vacuum tube loose from the front plenum. It just slides up into the rubber fitting that connects the front plenum to the intake manifold. Real simple to knock loose, real simple to miss.
I got the plain one as I don�t have the UAOS. Disconnected the battery for about 2 hours, car runs great, but cold start hesitates momentarily but once cold start sequence is done, it idles fine. I haven�t tried having it run with the oil cap off�
I know without the MAF plugged in the ABS and PASM lights come on. MAF is definitely in. Here�s a weird thing that happened though, I left it unplugged by accident when I double checked things again, the cold start was normal/good and but those lights came on so I know I forgot to plug the MAF in. Bad MAF since the cold start and idle is smooth with it unplugged???
.
Triple checked that�that�s plugged in.
Smoke check and can�t find anything�is that rough cold start possibly a bad MAF? When I forgot to plug it in, it idled better unplugged�.
When MAF is not connected, car is running is safe mode, fails emissions but runs better than otherwise. ABS/PSM should have nothing to do with the MAF. you need PIWIS to see exactly what your problems are. Brakes use vacuum to multiply the braking force and a problem there may illuminate the ABS light.
