Volkswagen Golf Epc Light

I've got a 2003 VW Golf 1.6 16v MK4 .

I've just had my throttle body cleaned and reset due to a rough idling issue. The idle has improved dramatically and hasn't dipped since.

However, i've got 2 new problems, sod's law.

Firstly if i'm slowing down and drop into a low gear like 2nd it's almost like the car is trying to force the revs back up which naturally fights my braking. This doesn't happen all the time and once im stopped my revs are perfectly calm.

EPC and 2 warning lights '03 Golf mk4 1.6 16v

Secondly and most worrying is i get 3 warning lights come up (at the same time) (see attached photo) intermittently. They last for the whole trip once they've come up.
The EPC and the Triangle with ! inside an arrow disappear when the engine is turned off and on again. The other stays on until the engine has been off for a couple of hours.
I have had it scanned and ive had codes

P1176 (o2 sensor 2(post cat?)),
P1553 (something to do with MAF) and
P0171 (Fuel trim or something orother).

These were read in a hurry with a garage in passing as they were fully booked up so didn't get chance to get them to have a proper look.

None of these lights or codes appeared before the throttle body cleaning and as im no mechanic i will try not to assume, but are those codes in any way related to a throttle body?

This only started happening 20 or so miles after picking the car up from the cleaning.

Also had a new tyre but sure that isn't relevant!

Would appreciate any insights, will naturally be dropping off at a garage asap but with a long drive ahead of me i'd like to know what kind of position im in and whether its safe to drive.

I should mention, the second time they came up it was accompanied by an almighty buck but i was rather low revs in 2nd so could just have been struggling to keep up.

The 3rd time it was fine while driving. Came back to it 5 minutes after parking to move it to my favourite spot (sad i know) and came up as soon as i pulled out of the bay.
The photo isn't very clear but all warning lights are yellow/orange, not red.
Thanks very much, Mark

Source : diynot