Author Topic: fuel air sensor fault after 540 miles  (Read 11609 times)

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Offline Podman

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Re: fuel air sensor fault after 540 miles
« Reply #15 on: April 20, 2010, 09:34:19 PM »
So do they fail again without the upload then?  will I need a new part again or will the upload just cure everything.  Also roughly when was the bulletin?

Offline Bubbs

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Re: fuel air sensor fault after 540 miles
« Reply #16 on: April 21, 2010, 05:47:02 PM »
I recently got my car (2.2 150) back from Invicta tw having had it's o2 sensor changed too. The dealer mentioned that they'd done some sort of software update too, hopefully with the new sensor and update it'll be ok, but time will tell.

LeonWH - do you happen to know what the software update actually does? I mean, does it change fuel mixture settings, or something else?


Offline Podman

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Re: fuel air sensor fault after 540 miles
« Reply #17 on: April 21, 2010, 06:08:30 PM »
Rung my local dealer in Newport today and they said that they had done a manual cat clear, reprogrammed the system and then installed new sensor, after that they had to do various test runs for the ecu to 'learn' whatever it is it learns.  Then gave it back to me.  So fingers crossed mine will be ok too. 

I too would be interested in what exactly the remap is supposed to do.  Be interesting to know if I'll gain/loose performance or MPG perhaps.  Mine only does 39mpg at the moment!  On a run of 250 miles (200 being motorway) it still only managed 41 and most of that was using cruise control.  Even the lard box insignia they gave me managed that 40MPG on the same run.  My ford van gets hammered every day and still gives me 37mpg so I'm really hoping my mpg improves on the Mazda as the engine beds in.  Fingers crossed ay!

Offline Muzzy

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Re: fuel air sensor fault after 540 miles
« Reply #18 on: April 21, 2010, 06:11:58 PM »
Interesting find on the remap..dunno if they did mine....done 1700 miles in total in mine and getting 45mpg thus far before and after the sensoe change first time around and I am not a particually slow driver as my other cars an Impreza.

Offline Podman

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Re: fuel air sensor fault after 540 miles
« Reply #19 on: April 21, 2010, 06:39:12 PM »
My two previous cars were a heavily modified Mitsubishi Evo VI which had it's engine rebuilt to be a 2.3ltr stroker lump at 500bhp and then a Nissan again with a  heavily modified stroker lump, running about 450bhp so I know I can be a bit hard on the car now and again expecting something it just can't produce.  But with that said, I woudln't say that I'm always hammering it.  Especially when I'm sat cruising on the motorway for 100 miles each way.  I've tried being nice to it for a whole tank, so far I'm about 1/2 way through that tank and it's currently saying 38mpg after having been reset when I filled the tank (which was when I collected the car after the repair).

What sort of miles are you getting from a full tank?

Offline AndT

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Re: fuel air sensor fault after 540 miles
« Reply #20 on: April 22, 2010, 06:16:48 PM »
Hi, My 185 is showing 39mpg at 1600 miles and I am not using the power fully yet, I am holding it back a bit, I know it is still running in and the engine is tight but I was expecting more than this. Drops a bit when doing a regen.
Mini 1275GT, Escort Mk2 Sport, Sunbeam Ti, Nissan Sunny GX, Escort XR3i, Fiesta XR2, Rover 416 SLi, Rover Metro Gti, Peugeot 106 XL, Peugeot 406 Estate, Astra CD Estate, SEAT Ibiza 20v Cupra, Astravan Sportive CDTi, Combovan DTi, SEAT Leon 2.0D Sport, Mazda 2.2D 185 Sport.

Offline Podman

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Re: fuel air sensor fault after 540 miles
« Reply #21 on: April 22, 2010, 10:19:20 PM »
I hope the remaps haven't killed the MPG .....  I bought a 50mpg car not a 40mpg.  Hell I get 47mpg out of a 2litre tdci Mondeo and I hammer the life out of that!

Lets hope it improves as the mileage increases, I've just hit 40mpg bounces up and down from 38 - 40

Offline Muzzy

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Re: fuel air sensor fault after 540 miles
« Reply #22 on: April 23, 2010, 04:22:14 PM »
Update on mine...Mazda don't know whats wrong now as the previous fault was recitified and they did do an ECU upgrade as per the technicalbrief Mazda issued :(

Offline Podman

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Re: fuel air sensor fault after 540 miles
« Reply #23 on: April 23, 2010, 06:57:43 PM »
Gutted for you yet again m8!

This could be bad news for us all, it's bad enough that I've just realised that the one I have is down spec'd to the ones I saw reviews on.  But the possibility of a fault that they can't yet rectify is even more worrying!  It could be really bad news for us all!

Offline Muzzy

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Re: fuel air sensor fault after 540 miles
« Reply #24 on: April 23, 2010, 07:54:39 PM »
The only thing that cheers me up is I nearly bought a new WRX....appears they have serious piston problems, have cast rather than forged ones since 2008 (my current is an 06) and they have to rebuild engine :(

Offline Podman

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Re: fuel air sensor fault after 540 miles
« Reply #25 on: April 23, 2010, 08:11:55 PM »
well at least that's one bit of luck!

Offline Bubbs

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Re: fuel air sensor fault after 540 miles
« Reply #26 on: April 23, 2010, 09:48:59 PM »
They *should* be fix-able... I just wonder what Mazda have changed mechanically / electronically on the car recently (compared with, say, those registered in August/Sept/Oct) - cos I've not seen anyone with those older 'new' 3s have this issue.

Maybe the solution is to up-spec the cars again, and retro fit all the missing bits to ours?  :P

Offline Podman

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Re: fuel air sensor fault after 540 miles
« Reply #27 on: April 23, 2010, 10:00:10 PM »
It's a nice idea but I some how doubt it...

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Re: fuel air sensor fault after 540 miles
« Reply #27 on: April 23, 2010, 10:00:10 PM »