Russellg911

...or moreso on Classics?

And can a failing one make the car sluggish to go past 90/100 (purely as a hypothetical example)

Flatcapdriver

No. Old ones tend to have these issues.

Russellg911

Thanks mate

funkyspider

Newage MAFs seem to be much more robust.
99/00 seem to be the worst ones. Do a search in General Technical forum for common symptoms of MAF failures.

octain

Do you run an open filter / induction kit, this often causes problems on many cars

Mick

Russellg911

Spider: thanks
Mick: nope mate 100 standard

Ok can someone then verify this:
On a newage, if the car has been running on 97ron BP Ultimate for a while, and is then run on 10 or so tanks of Tesco99 do you have to manually reset the ECU for it to 'fully' adjust itself to the new fuel.

I ask this query because a dealer has told me that Newage ECU's are a bit lacklustre when it comes to 'naturally' adjusting themselves when switching from a lower octane fuel to a higher octane one and that a full reset is best rather than the ECU trying to re-learn. The dealer said that the re-learning is more proficient if changing from high octane to lower.

?

JonMc

iTrader: (51)

Your dealer is talking cr@p. The newage is particularly good at re-learning and should do it in less than a tank. I reset my ECU on Saturday after the car threw a fault code, did about 30 miles and it was running like a dream.

Alan MaC

Question, if you reset your ECU and, you have had a remap, does it wipe out all the hard work the mapper has done & start from scratch??

JonMc

iTrader: (51)

No because the mapper will set your remap as the default. I was taking advice regarding a boost issue off AndyF and he uses the rear heater switch iirc to allow you to switch between the factoy map and the remap.

andythejock01wrx

Too frigging right mate !!

Russellg911

Jon - do you just d/connect the battery to reset the ecu then mate?

Thanks
Russ

andythejock01wrx

You don't need to reset the ECU on a Newage when using a different petrol - it'll adjust itself within a few hours of driving, at the most.

Stevesbluewrx

iTrader: (4)

Sorry to add.

But I had to have a new MAF fitted under warranty when mine went awol.

Is this an issue with MY01 bugs? Or was it just one of those things.

Steve

JonMc

iTrader: (51)

As Andy said, don't need to reset unless you've got a fault. The battery thing doesn't work on the newage because it has non-volatile memory. I've got a SECS (PSI3) data monitor to reset mine.

You can also get the software for your laptop from tari racing, it's freeware and I also have that, but you need to buy and OBDII cable which I don't have yet.

Stevesbluewrx

iTrader: (4)

Sorry to add.



But I had to have a new MAF fitted under warranty when mine went awol.



Is this an issue with MY01 bugs? Or was it just one of those things.


Steve

JonMc

iTrader: (51)

Just one of those things, I think Subaru change them as their first stab in the dark at curing any rough running problems. I had one done under warranty when I bought my bugeye but it made no difference. Just needed a good service.

The MAFs on MY99/00 where a bit fragile but the bugeye ones are generally fine unless you use an oiled induction kit.

Stevesbluewrx

iTrader: (4)

Thanks Jon.

Sorry about the double post not sure what happend there?

Steve

ace2000

so can you clean the maf or do you have to get a new one if so are they very expensive, the reason i ask is that i have a MY00 Justin.......

JonMc

iTrader: (51)

They can be cleaned, but if they go they can take the engine out because it will run lean and cause detonation. I'm not sure on the costs for your vintage, but the bugeye ones are about £230, but Subaru will try and sell you the sensor and housing. Without the housing the price drops to about £80 iirc.

Russellg911

Thanks for all the help guys

andythejock01wrx

funkyspider

Don't worry it's not gonna break the bank. As these are replaced so regularly plenty of places have them in stock. A quick post on the wanted forum will probably find you one, or a supplier that can provide one at a good price. Just have a quick search for the symptoms of MAF failure and, without being paranoid, keep an eye on how your car runs. I think, from chatting to a specialist last week, MY00 is quite easy to check MAF with OBD software

ace2000

cheers funkyspider ; I used to use obdii on my focus and it wasn't that dear about £50 for the lead and the software you can get on the net for nowt.. so i reckon its got to be worthwhile.