hagrid
Member
- Posts
- 14
- Location
- kidlington
hi all has anyone fitted aftermarket sensors and if so are they anygood as i believe genuine new parts are like rocking horse s#*t thanks for any help
2.5 diesel maf sensor aftermarket
- Thread starter hagrid
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
Littelwill
Well-Known Member
- Posts
- 3,065
- Location
- Lincolnshire
I needed a new one and spoke to about 6 main dealers / independents they all said the same thing "this part is no longer produced" have you tried looking on eBay for a working genuine one?
All the best.
All the best.
hagrid
Member
- Posts
- 14
- Location
- kidlington
found one one ebay but not sure if that one is any good but euro parts list a replacement for £105 and a warenty secondhand they wanted £45 plus postage
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
There's one on fleabay for £99.99 new. and another for £45 used
- Posts
- 58,170
- Location
- Preston Lancs.
Why would you need one?
Unless you are using the EGR.
Unless you are using the EGR.
hagrid
Member
- Posts
- 14
- Location
- kidlington
wammersi know you have probaley been asked this more times than you have had hot diners but could you please explain just once more what long term diferance it would make to leave disconected thanks again
- Posts
- 58,170
- Location
- Preston Lancs.
The MAF is there to control EGR it does nothing else. I am more interested as to why you think you need a new one. If this was a vital component they would still be available. As the petrol MAFs are.
Datatek
Well-Known Member
- Posts
- 44,887
- Location
- Near Poitiers SW France
Funny, on testing, disconnecting it worsens fuel consumption on mine and I get small amounts of smoke, also the IAT is in the MAF.
Try contacting Pierburg direct for an equivalent.
Try contacting Pierburg direct for an equivalent.
hagrid
Member
- Posts
- 14
- Location
- kidlington
was runnning fine then a noticable drop of in power after reading various post tried disconecting maf and the power was returned was not sure what effect it would have long term so started looking for a replacement have also found same part number is also used for bmw and vauxhall omega if you go on ebay and search part number there are quite a few aftermarket suppliers selling them for other vehicles but all part numbers are the same
Datatek
Well-Known Member
- Posts
- 44,887
- Location
- Near Poitiers SW France
The ECU uses a defult MAP in the absence of the MAF so the car will run fine without it, mine uses more fuel in that situation.
- Posts
- 58,170
- Location
- Preston Lancs.
Nonsense the MAF is for EGR operation it does not effect fuelling. How many times are you going to spout this crap? It has been explained to you a couple of times. The Temp sensor in the MAF has nothing to do with fuelling and neither does the air flow reading.
Datatek
Well-Known Member
- Posts
- 44,887
- Location
- Near Poitiers SW France
You think what you like, I've proved it for myself and it's confirmed in the final update of RAVE. It's you that's spouting intransuigent crap.
- Posts
- 58,170
- Location
- Preston Lancs.
You show a distinct lack of knowledge of how a Diesel works unfortunately. What you claim is not possible.
Datatek
Well-Known Member
- Posts
- 44,887
- Location
- Near Poitiers SW France
While you are ace on FIP mechanics, you seem to now the best part of feck all about electronics, how do you think the M57 uses the MAF, or the later Transit?
I've done enough checks to be pretty sure of my ground, you as usual just use bluster.
Technical manuals are often revised to correct errors but I have never know a tech manual revised to change from correct to incorrect. Early versions of 98/99MY RAVE say the MAF controls the EGR, no mention of fueling, the last revision states it controls the MAF and fueling. True it's not like a petrol and only trims the fueling rather than being the be all and end all like a petrol.
- Posts
- 58,170
- Location
- Preston Lancs.
We are talking a M51 the EGR is to control the production of NOx that is it's purpose. I don't give a toss about the M57 or the common rail Transit. NOx control is a function of air supply NOT fuel supply. EGR controls air supply to reduce the production of NOx by reducing combustion temperature. It does NOT control fuel supply which is adjusted by the ECU subject to engine RPM. The temp sensor in the MAF tells the ECU the air temp flowing past the hot wire sensor. It must know this to work out the correct flow rate as colder or warmer air would give false readout. The IAT preset in the ECU is to ensure EGR operation under all conditions actual fuelling is extrapolated by the ECU from engine temp and fuel temp. You CANNOT trim fuel without changing the rquested engine speed it is not possible.
Last edited:
Datatek
Well-Known Member
- Posts
- 44,887
- Location
- Near Poitiers SW France
Bollcocks
Feck off back to your Sangria.
- Posts
- 58,170
- Location
- Preston Lancs.
No.
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
Probably not, unless it's been played with. My 98my hasn't. Anyway, don't interrupt, let the old buggers thrash it out. They must be missing each other. How's the holiday going Tony?
op2:
kevwill
Active Member
- Posts
- 930
- Location
- Sunny Hastings
Its quite upsetting when Datatek and wammers disagree - like when you were a kid and yer mum and dad have a row; and you musn't interrupt of course, only the mother in law can do that - now where is SaintV8??
