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Thread: Clearing ECU codes

  
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    Damon999's Avatar
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    Clearing ECU codes

    My ECU is showing a fault code for the EGR and has been for some time. I have replaced the EGR but because the ECU has shut it off as being faulty, I need the ECU cleared so it will work again. My ECU doesn't clear when the battery is disconnected or when the ignition is turned on and off a certain number of times. Vauxhall have just told me it is half an hours labour to plug it in and reset it (sounds like crap to me) and that it'll cost about £40 . Would any garage be able to clear the codes for me or is it a Tech2 only job?
    Also, is there any cheap PC based software and cable link that you can use to read and clear codes on Vauxhalls?

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    Darren SXi 1.8's Avatar
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    Half an hour LOL... Try another Vauxhall garage mate, get friendly with a tech/engineer
    and offer him a pint and i'm sure he'll be happy to plug in his Tech2...

    Don't go on about your problem just ask him if he would kindly plug her in for curious
    reasons! I did this with a local garage and he was an alright bloke!

    Helps if you prepare yourself, so remove the cover under the handbrake lever and
    pull off the black plastic cap covering the female, then if he asks how did you know
    that... mmm, astra-sport.co.uk mate!

    All the best.
    Irmscher parts irmscher-bits.com
    ask 4 Dave & mention Darren SXi 1.8 sent u!

    Performance Vauxhall Show 'A-S Cleanest Car' 2006

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    Oh, not sure but I think it's only Vauxhall with the Tech2, there is a paper clip 'trick'
    but who wants to mess about with the electrics! Not me!
    Irmscher parts irmscher-bits.com
    ask 4 Dave & mention Darren SXi 1.8 sent u!

    Performance Vauxhall Show 'A-S Cleanest Car' 2006

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    Jace's Avatar
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    I asked the lovelly lovelly man at Regal! What a kind gent he was! I offered him a drink, but he wouldn't accept it.

    A mate of mine's garage had tech1 (or equivalent) and it was no good for what I wanted to do, but it might be ok for what you need. Long shot btw!
    From the Southeast? Find your next meet here


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    If it's a mk3 it's tech 1 you want mate.

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    markja's Avatar
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    simply unplug your battery for half an hour mate, that rids the ecu of all fault codes
    YOUR FRIENDLY WINDSCREEN MAN

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    Thanks for the replies. It is a MK3 so does anyone know a garage in the north Kent / London area that has a Tech 1 and would wipe these codes for me for a more moderate price.
    I have tried disconnecting the battery overnight but the codes remain. Some of the later ECU's from '96 on, keep their memory regardless and mine in one of those which is a pain in the arse.
    Any other ideas?

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    A mk3 should loose codes if you turn on and off the ignition 20 times. Also - should loose them if you unplug the battery overnight.... unless the Seimens ECU fitted to the 1.6 is different. Worked on my 1.8 Ecotech no probs.

    Are you sure you have fixed the EGR issue? Maybe yours is just relogging a new fault each time you reset it.
    8 Astras in a row! Can Anyone Beat That?
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    I know it's not just that the EGR is still faulty as there are other old codes on there and trying both methods of clearing them, they still stay there. I even checked them without starting the engine after trying to clear them just in case but they were all still there. It does mention on the TIS disc that they fitted a different ECU from '96 on and that some ECU's can only be reset by Tech 1 / 2 so I guess that's mine which is a pain. Is there no other diagnostic tool that can check and clear codes off Vauxhalls other than Tech 1 / 2?

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    Just for peoples info who may not be sure as I was not, it is not just tech 1/2 that can read and clear fault codes on Vauxhalls (those that can't be paperclipped) as my local garage did it for me using Bosch diagnostics.

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