Engine management lights come up on my dash and the diagnostic's say it the ERG valve. So mechanic's said I should do it myself, which I plan to while he services it (I'm not completely daft). Any recommendation for the best clean product to do this? Not looking to leaving it soaking overnight, just want to get it clean while at his garage.
Expecting something along the lines of (not my picture)
Also while I have the part off, what's the advantage of blocking the inlet with a blanking plate, as it's taken 90K to get blocked up, I'm doubting the car will last another 90K TBH..