Having now had my EGR deleted with a mild remap at Autolusso, the car really flies. So much so, I'm a little wary of over-using the extra power and putting a little strain on my car, especially as it's done 114K! However it's very reassuring to be able to overtake with even more ease than before.
However, I'm still left with regular MCSF messages - I started getting them prior to the EGR delete and hoped that the delete might cure it. I'm finding the MCSF yellow warning light stays illuminated constantly now, but by stopping and restarting the engine, I can get it out of what seems to be limp mode. When doing the delete, Ned at Autolusso said the error codes pointed to sticking turbo vanes, and they fitted another solenoid (I think it was). When I left the car ran perfectly for 20 miles and then I got limp mode again. Ned said to persevere with it and I certainly trust his advice - so I've been putting in generous doses of Millers and giving it plenty of high-revs runs. I also continue to use decent fuel, having given up on supermarket stuff about 2 years ago.
It seemed to be helping - on my commute back home last week of 130 miles, I managed to avoid limp mode; however on this morning's commute, I must have restarted the engine about 4 times. The symptoms are that it suddenly loses the usual surge and climbs to 3500 revs much more slowly and then won't go past that point, so that I have to change up to get some more acceleration. I'm not seeing clouds of smoke out of the back and economy still seems pretty normal (about 45-48 mpg) - although still early days, having only done about 500 miles since the delete, and most of those have been with a heavier right foot than usual.
I don't have a lead yet to be able to look up the error codes, but I'm just curious if there could be another fault? Car has full service history, so has been pretty well looked after. Perhaps I just need to persevere - I have seen the videos of cleaning the vanes in situ - but just wondering if my symptoms sound like sticking vanes? Would an engine restart just release the vanes though? Trouble is it's over 100 miles for me to Autolusso, so not easy to pop back in
I'm still very glad of the EGR delete - and the performance looks to be superb, but it's a little disconcerting when starting an overtake, with the risk of the constant limp mode.