VSS problems

Hey I have a 2002 jetta 1.8t w tictronic tran. It just got out of the shop from having a problem shifting out of first gear. It sounded almost as tho it were in neutrel. The mechanic replaced speed sensor and had to repair wiring at ing coils along with repairing a vacuum leak and some other misc things. Well after 24hrs the its back to not shifting past the 15mph mark. As well the check engine light and temp light were on before and the mechanic corrected this. But since the problem has come back so has the temperature indicator light. Any ideas on what could be causing the problem?