EdHru

Hi all hope you are keeping well and safe at these strange times. I wonder if someone could kindly shed some light on the issue that my Fabia mk3 (Manual, 1.2tsi 110bhp) has manifested two days ago. The car is 17 plate with 16k on the clock. Due to the current situation the car is not in regular use, even before this, I was not using it that much as I am working from home and would probably cover apx 40miles per week (20min journey each way twice a week when in the office on a A road, so normal speed 55mph). For the last 4 weeks car has moved maybe 3-4 times to the shop (5 miles round trip) to town driving below 30mph. Neighbour has given me a CTEK 3.8 charger to maintain my battery for a bit, trickle charged it for just over a week, and then this strange issue appeared. So, after this charge I decided to go to the shop, disconnected it all (but I honestly did not know that the negative clamp should NOT be connected to the negative battery terminal, only found this out last night reading further on the forum, so lesion learned in that respect as my car is start-stop, button ignition, NOT kessy). When I stated the car on the display a message popped up “Start-Stop Error”, and when I moved on then orange ECP light lit up as well. Drove to the shop turned off the car, switched back on no messages of any sort. On the way back, a mile into the journey ECP light lit up and orange engine symbol lit up as well. Scanned it with Carista OBD2, which detected 4 faults: P003A (Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit). CAN network gateway – 197175 (Manufacturer specific code) Central electronics – 233224 (Manufacturer specific code) Engine – 16434 (Manufacturer specific code) Neighbour suggested to give it an Italian clean (aka. give it a rag in low gears uphill where we live). I did that took it on an empty road couple of times, high revs etc upto 60mph, needle hitting 6k revs when in lower gear, no limp mode, and the lights never came back on??? Took it yesterday as well for a hard revs/drive to test it, nothing no lights, drives normal. Re-scan with Carista OBD no faults found, ECU scan as well - no fault codes on any of the components, nothing completely clean. What could cause this: Could it be that a turbo was sticking (wastegate) which could identified as an over-boost when I was slowing down to turn (foot of gas) due to the lack of car use? Could a CTEK charger confuse the system hence that Error start-stop msg, as I connected the charger wrongly (negative clamp on negative battery terminal instead of earth point on a car, (thanks to XMANs post on other thread) and cause all this mayhem?). Could that cause it? Is it safe to keep the changer on trickle for longer given the current non-car use situation? I must admit that I am not the fastest driver anyway, never raged the cars, fuel economy fanatic, always change gear below 2k revs, so maybe a turbo needed that clean perhaps? Sorry for the long post just trying to give you guys full picture, any advice/guidance would be much appreciated. Many thanks.