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P0103
hi I had a p0103 code come up which is the maf sensor just wondering dose the maf need cleaning or just need to be replaced
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Originally Posted by Hawkins 1995
(Post 11987976)
hi I had a p0103 code come up which is the maf sensor just wondering dose the maf need cleaning or just need to be replaced
Doesn't necessarily need replaced but you've not given much information. What mods have you fitted to the car. Is it mapped, Have you fitted anything recently ? |
Originally Posted by rob84
(Post 11988009)
Its a high volume code.
Doesn't necessarily need replaced but you've not given much information. What mods have you fitted to the car. Is it mapped, Have you fitted anything recently ? Cars running 396bhp Mods are Td0520g hybrid turbo Perrin inlet pipeEcutek remapNGK 7 plugsWalbro 255 fuel pumpHKS mushroom filterHKS BOV3" stainless turbo back exhaust (H+S) Vortex afterburner back box Nothing fitted recently and yeah high volume imput |
Wasn't this mapped recently ?
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Engine-Codes OBDII
Code List P0103 SUBARU P0103 SUBARU - Mass or Volume Air Flow Circuit High Input Possible causes Faulty mass air flow sensor Intake air leaks Dirty mass air flow sensor Dirty mass air filter Mass air flow sensor harness is open or shorted Mass air flow sensor circuit poor electrical connection What does this mean? Tech notes Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor. What does this mean? When is the code detected? An excessively high voltage from the sensor is sent to Engine Control Module (ECM). Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) Engine stall Engine running rough Excessive fuel consumption Excessive smoke However the above issues may be due to a remapping to gain extra BHP.. |
Originally Posted by mervil
(Post 11988113)
Wasn't this mapped recently ?
1k miles ago |
Originally Posted by The Trooper 1815
(Post 11988123)
Engine-Codes OBDII
Code List P0103 SUBARU P0103 SUBARU - Mass or Volume Air Flow Circuit High Input Possible causes Faulty mass air flow sensor Intake air leaks Dirty mass air flow sensor Dirty mass air filter Mass air flow sensor harness is open or shorted Mass air flow sensor circuit poor electrical connection What does this mean? Tech notes Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor. What does this mean? When is the code detected? An excessively high voltage from the sensor is sent to Engine Control Module (ECM). Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) Engine stall Engine running rough Excessive fuel consumption Excessive smoke However the above issues may be due to a remapping to gain extra BHP.. The map was 1k miles ago most probably just drity so just reset it for know if it comes back on I'll get some cleaning for it |
Use an electrical no residue cleaner, not brake cleaner.
Carb cleaner not sure, I use electrical cleaner to be safe on sensitive things like a MAF. |
Originally Posted by Hawkeye D
(Post 11988171)
Use an electrical no residue cleaner, not brake cleaner.
Carb cleaner not sure, I use electrical cleaner to be safe on sensitive things like a MAF. Cheers mate was going to use maf cleaner if it come up again see what happens |
I'd bin the HKS filter and replace with a better filter. One of the lads got through 4 maf sensor in a weekend whilst running one of these
http://www.shinny.co.uk/toyota/Air%2...hoot%20Out.pdf or http://mkiv.com/techarticles/filters_test/2/index.html |
Originally Posted by DannyBoy007
(Post 11988180)
I'd bin the HKS filter and replace with a better filter. One of the lads got through 4 maf sensor in a weekend whilst running one of these
http://www.shinny.co.uk/toyota/Air%2...hoot%20Out.pdf or http://mkiv.com/techarticles/filters_test/2/index.html |
Originally Posted by DannyBoy007
(Post 11988180)
I'd bin the HKS filter and replace with a better filter. One of the lads got through 4 maf sensor in a weekend whilst running one of these
http://www.shinny.co.uk/toyota/Air%2...hoot%20Out.pdf or http://mkiv.com/techarticles/filters_test/2/index.html Don't think it would be the hks tbh it's been on there year I will change it to a maf less induction when I do my 2.1 stroker build |
Originally Posted by Hawkins 1995
(Post 11988209)
Don't think it would be the hks tbh it's been on there year I will change it to a maf less induction when I do my 2.1 stroker build |
It's a dry bitty filter... little bits break off and can damage the maf especially after upping the boost
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Originally Posted by mervil
(Post 11988397)
It's a dry bitty filter... little bits break off and can damage the maf especially after upping the boost
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Just any update since cleaning the maf and resetting the code after 1000 miles the light still hasn't come back on happy days 😊 |
Had the problem come back turned out to be the pcv in the end |
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