7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHuneven running at cruising speeds
Leading reported evidence
Disconnect maf at the wiring harness and ideally
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
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
If you want disconnect the MAF at the wiring harness and ideally with an OBD2 code reader clear the codes to reset the fuel trims to their defaults.
Leading evidence: 'Disconnect maf at the wiring harness and ideally' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect maf at the wiring harness and ideally' (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.
Reconnect maf, clear the codes again, and driver the car
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
If the symptoms are not present then reconnect the MAF, clear the codes again, and driver the car again to make sure the symptoms return.
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 was thinking of replacing MAF as they appear cheap but don't even know whether my car is E gas or not at this stage
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
If you want disconnect the MAF at the wiring harness and ideally with an OBD2 code reader clear the codes to reset the fuel trims to their defaults.
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
My 2000 C2 Tip with 55,000kms is running unevenly at normal cruising speeds.
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.
7 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
Replacement of the (suspected) MAF sensor has totally cured the problem...cheap and easy fix on this occasion.
My 2000 C2 Tip with 55,000kms is running unevenly at normal cruising speeds. It doesn't appear to be missing, just a slight hesitation or variation. It will occasionally run rough at cold start up, but is fine almost immediately and accelerates with no hesitation......any thoughts as to a likely culprit? My searches so far haven't had much success......
Cheers Bryan W ......Darwin Australia
Need more info about the car's condition, history, upkeep.
Well there's the AOS. With the engine warmed up and idling in Park can you unscrew and remove the oil filler tube cap? If not or if it is difficult this is a sign the AOS is going out. If you have no trouble removing the cap this is not conclusive proof the AOS is ok though.
If you want disconnect the MAF at the wiring harness and ideally with an OBD2 code reader clear the codes to reset the fuel trims to their defaults.
Then drive the car as you have been when the symptoms appeared before.
If the symptoms are not present then reconnect the MAF, clear the codes again, and driver the car again to make sure the symptoms return.
If the symptoms do not go away the problem lies elsewhere. See AOS.
But it could be a fuel filter. A failing fuel pump. Bad gas. Or something deeper though the symptoms do not strongly point to this.
car looks like its only had annual servicing to date with no issues.....I'm a relative newbie to the car having owned 928s before. Will do some research on AOS threads and acquire an OBD2 reader....any recommendations? I was thinking of replacing MAF as they appear cheap but don't even know whether my car is E gas or not at this stage
OBD2 reader is ordered. I can remove the oil cap without difficulty at idle....reasonably strong vac/suction noise and revs jump about 200rpm, falling back to 600ish when the cap is replaced. Gas is fresh. Thelocal OPC / dealer disturbed something at the last service leading to rough idle (wasn't us - we didn't touch that) but they sorted the problem and I don't know what they did.
Replacement of the (suspected) MAF sensor has totally cured the problem...cheap and easy fix on this occasion. .....and haven't even got to play with new OBD2 reader yet. Thanks to respondents
