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Engine Management and ECU Remapping This section is to discuss the various aspects of engine management modification for your Subaru.

Please help me read my ecu fault.

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Old 07 November 2016, 11:33 AM
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aaron_ions
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Default Please help me read my ecu fault.

Hi guys, after a busy and expensive weekend I was driving to work and an engine management light has come up. My cars an 04 blob wrx uk and ive had it 9 months and it hasnt missed a beat. as far as im concerened too it still hasnt missed a beat. i was just in a row of traffic waiting at lights about 5 mins after initial cold start up this morning and it came on. ive turned it off a few times and restarted and its still there. also disconnected battery for half hour and no luck. (i understand this doesnt reset ecu on the newage models unlike classic)

Im a bit miffed as id finally started putting a bit of cash aside to get all my parts fitted and then mapped. i hope this isnt to costly to fix!

The car is stock other than a backbox and panel filter. all cats etc still in place everything else bone stocxk and car still drives perfect.

Im useless with tech, so can anybody give me in laymans terms how i can read my fault codes. ive searched and its all going over my head. i have an i pad2, and a nokia lumia windows 820 phone what do i need to find out whats wrong or have i got no chance lol. TIA, help would be very much appreciated right now.
Old 07 November 2016, 11:46 AM
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why not find a local member who can help read the code ?
Old 07 November 2016, 12:23 PM
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Buy a obd code reader off ebay for £15. It will give you a code then google the code.
Old 07 November 2016, 12:29 PM
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Originally Posted by JDM_Stig
why not find a local member who can help read the code ?
That would be awesome. Im in walsall just out the center ws2 if anyone fancies doing that for a drink
Old 07 November 2016, 12:30 PM
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Originally Posted by nortonscooby
Buy a obd code reader off ebay for £15. It will give you a code then google the code.
And ive read posts about this, but it all goes over my head. can you tell me what exact ebay item will definitely work with my model and be compatible with either my ipad 2 or windows lumia 820. or if they are stand alone and can be read just with the obd2 divice. help much appreciated!

my old classics were easy just read the morse code haha
Old 07 November 2016, 12:37 PM
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Sods law, i fell down the stairs the weekend and broke my phone, so ive got a lumia 820 replacement on the way. the first day i drive without a phone pretty much EVER i have a light come up on the car. not only that i drop and pick up my little boy before and after work on a monday so i really hope it doesnt conk out on the way home with him so we have to brave the cold weather. this weekends been one thing after another
Old 07 November 2016, 12:45 PM
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Originally Posted by nortonscooby
Buy a obd code reader off ebay for £15. It will give you a code then google the code.
Some of the handhelds can be a bit hit and miss.
Old 07 November 2016, 01:28 PM
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You not far from me im in pelsall. If you can wait till wednesday i can plug my data monitor in and get code for you and clear it. Whats you car like ive prob seen you about
Old 07 November 2016, 01:29 PM
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Originally Posted by nortonscooby
You not far from me im in pelsall. If you can wait till wednesday i can plug my data monitor in and get code for you and clear it. Whats you car like ive prob seen you about
ill p.m you mate thanks alot
Old 07 November 2016, 01:30 PM
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I live in south Birmingham if you want to bring it down one night this week we can take a look. I've got various tools for reading and clearing codes...
Old 07 November 2016, 01:32 PM
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Sent you my number via pm mate
Old 07 November 2016, 01:43 PM
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Originally Posted by Bazil_SW
I live in south Birmingham if you want to bring it down one night this week we can take a look. I've got various tools for reading and clearing codes...
thanks for the kind offer... looks like im sorted though
Old 07 November 2016, 01:44 PM
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Originally Posted by nortonscooby
Sent you my number via pm mate
your in box is saying full but anyway, got the number ill text you beforehand but will deffo be coming up wed evening about 6:30pm i guess. thanks again.
Old 07 November 2016, 01:45 PM
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Ive just cleared it lol
Old 07 November 2016, 01:46 PM
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Originally Posted by aaron_ions
thanks for the kind offer... looks like im sorted though
aye, no worries!
Old 10 November 2016, 07:18 AM
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Hi all.
thanks to nortonscooby who came out and read my code for me on his flash ecutek data monitor

p0031 so looks like the oxygen sensor in the headers as gone. the light came straight back on after it was cleared. im going to check the sensor resistance and see if theres any loose connections before i order... but can anyone give me a heads up on where to get a genuine sensor from for this. ive looked on ebay and theres thousands, all different prices, makes and part numbers.

04 wrx blob uk.

TIA
Old 10 November 2016, 08:05 AM
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world car parts
Old 10 November 2016, 08:31 AM
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Originally Posted by JDM_Stig
world car parts
thank you!

https://www.worldcarparts.co.uk/suba...sor-22641aa042

thats the one right?

cheers
Old 10 November 2016, 09:14 AM
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Looks right Bud, and is Denso, which is a must.
Old 10 November 2016, 09:27 AM
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No probs mate good meet you. That looks like the right part and good price. Easy d.i.y fit aswell. Remove arch liner and plenty of wd40 and 22mm ring spanner if i remember right.
Old 10 November 2016, 09:30 AM
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ill get it ordered then if my tests prove its duff.

cheers all.
Old 10 November 2016, 09:52 AM
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Originally Posted by aaron_ions
ill get it ordered then if my tests prove its duff.

cheers all.
check that its plugged in, if it is, just order one.

Old 23 November 2016, 10:05 AM
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any update ?
Old 23 November 2016, 12:05 PM
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Sorry... small update yes.

I have ordered and received the lambda sensor. (denso)

The cars going in to MB Developments this Saturday and i'm leaving it there untill early next week to have my front brake conversion and a few other bits and bobs done. So I thought may as well leave the guys to do the sensor whilst there in the front wheel well doing the brakes haha.

I'll let you know if the light stays off once that sensor has been swapped out.

Cheers.

Aaron.
Old 25 November 2016, 05:55 PM
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Have you picked it back up? Any better and hows the brakes?
Old 25 November 2016, 06:26 PM
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Originally Posted by nortonscooby
Have you picked it back up? Any better and hows the brakes?
Hi mate you alrite.

It goes in tomorrow so ill prob get it back mon/tue.
You know i mentioned to you it was going in for that corosion protection, well they found when removing the undertray that the lower front subframe brace was rotting so getting that done at the same time too. Rest of it underneath is good and nothing to worry about though. Ill let you know about the brakes. Should be decent though its that godspeed 345 2 piece disk kit. And downpipe as well so should sound a bit more like a proper car then as well lol
Old 03 December 2016, 03:54 PM
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How the motor now mate?
Old 03 December 2016, 04:15 PM
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Originally Posted by nortonscooby
How the motor now mate?
Hi mate ive sent u a p.m

All sorted the new sensor made the light go off and all back to normal thank you all for your help
Old 03 December 2016, 04:54 PM
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glad you got it sorted.




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