graham1971 10 Posted September 13, 2018 I've just been told that my 94 Corrado VR6 ECU (part no: 0261203108) is unrepairable by a specialist firm who have previously repaired it. Does anybody know where I can get a replacement part that will work or is this the end of the road for my pride and joy? I am gutted! 😪😪😪 Quote Share this post Link to post Share on other sites
fla 9 Posted September 13, 2018 nope they're still available as a used part. Not a major issue to swop out unless you've got a custom remap. I might still have one and i'll check this evening for you. Â Incidentally why did they say that? Did you have any symptoms of it being faulty? Quote Share this post Link to post Share on other sites
Dox 22 Posted September 13, 2018 Check or replace it he engine / gearbox earth strap, a broken, damaged or high resistant strap will blow ecus Quote Share this post Link to post Share on other sites
graham1971 10 Posted September 13, 2018 It's great to hear there's hope! Thanks Hasan, if you have got one PM me your PayPal details and we'll get it sorted! If you haven't got one and anyone else can help please help!!! Quote Share this post Link to post Share on other sites
graham1971 10 Posted September 14, 2018 I just got the unrepairable ECU back, the actual part number is 021 906 258 AG. I've been told that it makes no difference if it was on an auto or manual car. Has anyone got one for a quick sale? Quote Share this post Link to post Share on other sites
graham1971 10 Posted September 14, 2018 The ECU has been cooked twice, on both occasions whilst the exhaust was being welded. I know there aren't a lot of Automatic VR6's left so I was worried that: A. It may have been a different ECU for the auto's so there'd be none left and B. I know it has something to do with the immobilizer so I worried that a different ECU wouldn't work. I worry a lot! Still haven't found one but I have now posted the correct part number 021 906 258 AG, I think the one I originally posted is the Bosch partnumber. If ANYBODY has one for sale I am open to offers! £££ Quote Share this post Link to post Share on other sites
fla 9 Posted September 14, 2018 Sorry for the delay Graham - yes got one spare. I'll dig it out asap for you. Auto and manual ecus are the same. Its just the suffix of AG or CP or a few others that will be different. AG is the one i have. Â If its was damaged during welding they should pay for the replacement shouldn't they? Quote Share this post Link to post Share on other sites
graham1971 10 Posted September 14, 2018 Sorry for the delay Graham - yes got one spare. I'll dig it out asap for you. Auto and manual ecus are the same. Its just the suffix of AG or CP or a few others that will be different. AG is the one i have. Â If its was damaged during welding they should pay for the replacement shouldn't they? You'd like to think they would but they just keep using any excuse and denying any liability. My otherwise perfectly good Corrado, which I drove on to their ramp has been stuck at this garage since late JULY!!! I'm very frustrated and desperate to liberate my car, they're even going to charge me labour for removing and replacing the ECU. If anyone can help it would be greatly appreciated! The sooner the better! Quote Share this post Link to post Share on other sites
Dox 22 Posted September 14, 2018 They should disconnect the battery before welding or use a gismo across the battery terminals to prevent spiking. Quote Share this post Link to post Share on other sites
graham1971 10 Posted September 14, 2018 They did use the gismo that goes across the battery terminals obviously didn't help though! I just spoke to the garage and they said the immobiliser may be an issue if I just change the ECU, does anyone know if that's likely to be the case? Quote Share this post Link to post Share on other sites
Dox 22 Posted September 14, 2018 http://www.sealey.co.uk/PLPageBuilder.asp?id=20&method=mViewProduct&productid=7237 Â You said the ecu had been tested and declared goosed? Quote Share this post Link to post Share on other sites
Dox 22 Posted September 14, 2018 They did use the gismo that goes across the battery terminals  I doubt it Quote Share this post Link to post Share on other sites
1xshaunx1 27 Posted September 14, 2018 High frequency on 3 phase tig welding could fry an ecu, it should be disconnected. The scratch method start up for tig wouldn’t cause this. Battery should always be disconnected what ever welding process. Just what I’ve heard and found. Good look Graham Quote Share this post Link to post Share on other sites
graham1971 10 Posted September 17, 2018 I've managed to get hold of a second hand ECU with the correct part number and I'm going to drop it to the garage later today so fingers crossed. Does anyone know if there are likely to be any issues caused by the fact that it's not the original ECU for my car? Immobilizer etc? Quote Share this post Link to post Share on other sites
Dazz_G60_Wales 0 Posted September 20, 2018 Ask them to push it into the car park and go down and fit it yourself Bud Quote Share this post Link to post Share on other sites
fla 9 Posted September 20, 2018 its a half hour job - remove the scuttle panel rubber seal (lifts off), remove the scuttle panel sections and then slide the ecu to the right. Its then a bit of a manoeuvre to remove it from the gap, just takes times and patience. Pull the clip at the top of the ecu connector towards you and the connector will come off. When you refit, just align the slots in the connector into the channel and carefully push it back into position. Quote Share this post Link to post Share on other sites
