Bluedolphin18

hand one needs to be an exact match for your car with same engine code and gearbox code, they're locked once they're set... In the end I bit the bullet and got a brand new blank ECU for £1300 to start fresh 😞 Thanks for your comments - Yeah I understand looks like im in between a similar journey . See the pic below old and new part numbers are matching - I'm not sure about engine code / gear box code - is it something coming out of these number or something specific to be asked while buying it? im not aware of that Btw can you brief me how you went about ordering a new ecu - can you share any link that i can look up this new one was from Seat Leon 1.8T.

yuasa 111202 DIN 65LH is an EFB

Hey Aperture - Thanks for your comments. I'm not an expert in checking all this - As far as I understand all this My mechanic did the basic checks like your points. We started from the error codes - it was pointing to the wastegate actuator issue. We removed and found water/coolant - corrosion damage on it. Physically when its removed it doesn't move. We replaced with a new one. That's when we had issues to adjust the exact voltage so setup the actuator. Everything else you mentioned seems to be OK ( I haven't checked it myself as i dont know much about these things - but i trust him on this ) That pointed us to check the ECU - then he found connector leads which correspond to the turbo actuator from the ECU was not giving any voltage output. Which means its not communicating. That's where we deemed ECU may be damaged. I had two choices : 1. To repair - which is about 2-3 weeks or more - I understand it must be shipped to Melbourne some where and its not a guarantee fix. 2. Get Similar matching ECU from second hand market. While i can run my car. I chose to 2. that made sense at the moment. I got a 100% matching one - one exception it was used on a Seat Leon 1.8TSI - which is being looked at currently by another expert who deals with ECU's fingers crossed!

Thank you i understand your point. I haven't had any alternator issues & I haven't seen any battery bulge. Infact, I went to replace the battery and they checked and said its health is good and can last another year or so. Only thing they found was the vent hose was missing - they fixed it with a new one. They said may be since vent hose was blocked it as burst out and fallen off eventually, causing acid to spray inside battery case. then from there its has gone over the ECU. Since then i have had no issue with battery it seems ok no more leaks seen.

Thanks J.R for your reply. Yeah sorry its not a drain hole - its an electrolyte overflow - On top surface of the battery. There was significant leak of coolant and as well as overflowing battery acid. Please see the ecu connector pic attached. I dont see any issue with the connector pins. They looks ok. My mechanic is not an expert with ecu. He uses another expert who clones and set ups ecu’s . Im kind of stuck here. If nothing works i will go to skoda dealer and get it checked. Im out of warranty long ago. They are bloody expensive. Let see.

Hello Guy's My car is 2014 Octavia 132 1.8 TSI Elegance with Tech pack few months ago - The drain hose the acid battery fell off and started leaking. It was bad and it had some how gone over the ECU. However - I got the ECU light ON intermittently. Later it became permanent in two months time. We diagnosed it with couple of error codes 1. P256300 : Turbocharger Boost Control Position Circuit Range, performance 2. P00AF00 : Turbocharger, Super Charger Boost control A module Performance. My Euro Mechanic told The turbo actuator was not moving due to acid leakage - so needs replacement. We replaced with New - didn't work as he was unable to set the required voltage. Later upon deeper circuitry level check. He found the ECU was not delivering the current output and he was convinced the ECU . Was advised repair ECU ( takes 2-3 weeks No Car ) OR to get a replacement ECU with same part number as simos version. Since my car was running ok in the city - chose to get the replacement ECU. ECU make & Number : Continental 06K 907 425A Simos 12.1 - 003 H09 5WA1200901. It was hard to get one, However i found a Seat Leon ECU 1.8T exact matching part number in eBay. Firstly can we ECU from Seat Leon and clone it work on a Skoda? Now He is having some difficultly to be able to clone and configure to Skoda. He is yet to come back. Has any one gone thorough a same problem or similar ? If you are able to share your experience it will be great.