15 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHI have at last covered over 300 miles to a tank full
Leading reported evidence
Fill back up and my mui reads 414 miles
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.
I have at last covered over 300 miles to a tank full
Frequently discussed work
Clean can make a difference, although you need
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
a careful clean can make a difference, although you need to be very careful as to not clean off some of the coating as well as the grime so it degrades quicker second time
I have at last covered over 300 miles to a tank full
Read full discussion summary
Leading evidence: 'Fill back up and my mui reads 414 miles' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean can make a difference, although you need' (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 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
I use a solvent cleaner I get from RS, but you can get a contact cleaner from somewhere like Maplins.
I have at last covered over 300 miles to a tank full
Clean can make a difference, although you need
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
a careful clean can make a difference, although you need to be very careful as to not clean off some of the coating as well as the grime so it degrades quicker second time
I have at last covered over 300 miles to a tank full
Fill 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 · Original poster
Fill the car to the brim then drive until the warning light comes on and at that point see how many miles you have covered.
I have at last covered over 300 miles to a tank full
Run otherwise i also get about 240-250
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
Best i have managed is 310 on a tank and that was a long run, otherwise I also get about 240-250.
I have at last covered over 300 miles to a tank full
Frequently discussed actions (5)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Clean can make a difference, although you need
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
a careful clean can make a difference, although you need to be very careful as to not clean off some of the coating as well as the grime so it degrades quicker second time
I have at last covered over 300 miles to a tank full
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.
15 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
911uk: 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: 20261026T213932Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have been trying since December 08 to cover 300+ miles out of a full tank on my MY00 C2.
My test is simple, no motorways, just every day commutes to and from work. Fill the car to the brim then drive until the warning light comes on and at that point see how many miles you have covered.
The best I had had so far was 241 miles (The MUI reading when full read an average of 320 miles)
New MAFS last week... new results:
327 miles
- just filled back up and my MUI reads 414 miles!
Quite happy with the results, my driving style is made up of boring traffic jams then the odd blast here and there but mainly I have been trying to drive as economical as possible.
the efficiency of the Mass Air Flow Sensor, nice work
a careful clean can make a difference, although you need to be very careful as to not clean off some of the coating as well as the grime so it degrades quicker second time
as new they are pricey £250-350??
wow thats an incredible increase, I will definately be giving mine a careful clean. Just have to find the little blighter.
Best i have managed is 310 on a tank and that was a long run, otherwise I also get about 240-250.
What was the overall MPG?
- That sort of figures with no motorway truly is impressive. Surprised you didn't fall asleep!!
What was wrong with the previous MAFS? and was this a DIY job?
Cheers
I have an account with Bosch GMBH - £135 all inc.
Bosch = OEM
The MAFS is located in the top part of the air filter box, it has wires going to it.
My AVMPG is currently 28.4, drops down in jams but goes back up when driving Mrs Daisy.
Yes it has been boring.... now time to have fun
oh and yes... it is tempting to keep the car
I was filling up and recording the mileage and averageing 25 mpg.
Retrofitted an OBC stalk and it tells me I'm doing 22.1 mpg
although calcs still point toward 25 :dont know:
Will get the air flow looked at next service if it makes that much difference.
TB
wow i only get around 18mpg, it has only just been to porsche and they found nothing wrong with it. Would the maf be covered by the new style warranty?
You will need a T20 Security Torx driver to undo the two fixing screws. Best way to remove it is to undo the two screws first and pull it out the housing. Then undo the clip. The one shown is for early C2s - later ones have the clips on the long edge, and it's much easier to undo them once the MAF is removed.
I use a solvent cleaner I get from RS, but you can get a contact cleaner from somewhere like Maplins.
IMO, cleaning is just a temporary solution. If it has done more than 50,000 miles, get a new one.
Now I am back to driving normal, odd thrash here and there mixed with usual commute style driving my miles per tank this time worked out around 280 - 300 which is still very reasonable.
Current AVMPG reading is 24.8 but has been dropping by 0.1 every few miles, hopefully it should balance out around 24
This is a source reference. Confirm exact model applicability in the original material.