6 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHp1238,1239,1240, 1241 Check engine light on
Reported or suspected cause
short circuit
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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.
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Reported cause
My info is the possible cause is a short circuit to ground wiring for cylinders #2, #3, #4, and #5.
Check fuel injector electrical connections, any electrical connections
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
1
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Suggestion
First thing would be to check the fuel injector electrical connections, any electrical connections that may have been disturbed, on purpose or by accident, during the IMS bearing/clutch job.
Leading evidence: 'short circuit' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'short circuit' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check fuel injector electrical connections, any electrical connections' (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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Check fuel injector electrical connections, any electrical connections
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
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Suggestion
First thing would be to check the fuel injector electrical connections, any electrical connections that may have been disturbed, on purpose or by accident, during the IMS bearing/clutch job.
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
1) Checking fuel injector: Remove harness connector from fuel inject (in this case) #1.
Check wiring: connect special porsche pin-out-box 9616 (or equivalent)
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
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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.
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Suggestion
2) Checking wiring: Connect special Porsche pin-out-box 9616 (or equivalent) to wiring harness.
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
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Suggestion · Original poster
I took it to the shop and they have reset the CEL and ask me to drive and see if the light goes on again.
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Check fuel injector electrical connections, any electrical connections
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 thing would be to check the fuel injector electrical connections, any electrical connections that may have been disturbed, on purpose or by accident, during the IMS bearing/clutch job.
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.
6 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: 20261027T201111Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
recently upgraded the IMS and new clutch and then the check engine light on with code reading
P1238, 1239, 1240, 1241 indicating Fuel Injector Cylinder - Open circuit.
I took it to the shop and they have reset the CEL and ask me to drive and see if the light goes on again. He checked everything was fine but I am not sure if other have similar CEL read out and what did you guys do with that?
It is just a misread on the computer? I have a 2000 996 C2 with 63K milesage.
Car runs great with no lose of power or engine problem.
What do you guys think?
Thanks
No misread of the computer. I assume, however, the codes were read by a device that is compatible with the car and its OBD2 system?
As an aside, any name brand OBD code reader/data viewer ought to be I dare say, able to accurately read the codes. Most (none?) will not be able to offer any interpretation since error codes beginning with '1' are manufacturer specific.
The error codes are coming from both banks. My info is the possible cause is a short circuit to ground wiring for cylinders #2, #3, #4, and #5.
There are some tests:
1) Checking fuel injector: Remove harness connector from fuel inject (in this case) #1. Connect digital ohmmeter between pin 1 and pin 2 of the injector. Read 11 to 13 ohms at 68F (20C).
2) Checking wiring: Connect special Porsche pin-out-box 9616 (or equivalent) to wiring harness. Remove harness connector from fuel injector #1. Connect digital ohmmeter to pin out box 3 and fuel injector connector pin 2. Read 0 to 5 ohms.
Connector digital ohmmeter to pin out box 3 and ground. Read infinity.
Who did the IMS bearing upgrade and clutch job? Did the engine come out of the car?
First thing would be to check the fuel injector electrical connections, any electrical connections that may have been disturbed, on purpose or by accident, during the IMS bearing/clutch job.
Any chance of water getting into the car onto to the DME?
Any chance the car has sat and rodents have been at the car? Rodents love to gnaw and I have seen some pretty messed up cars with all kinds of goofy errors into various Porsche dealers arising from rodent damage.
If no signs of rodents -- and you have to really look for it -- then if the appearance of the errors coincided with the work on the car I have to believe the old saying "the last thing touched is the first thing suspected" applies.
Sincerely,
Macster.
toro996,
this place is the best. you must post photos. get as much info as you can regarding the work you had performed. macster provides most meaningful insight. make sure to share your experiences.
