more and more and more and more problems

[SPL_Jetta]

Well, ever since i got my car back from EPG, its been running just as bad as before, except that I wasted 514 dollars on parts that apparently were not bad. Also they upgraded my ECU to X+, and I cannot be any more pissed off with the results.

I know its not EPG's fault, because when they got done iwth it, it worked fine, but now it acting up again

I dont know if its a combination of small problems causing big problems, but apparently EPG didnt catch them

My problems are as followes
Sparratic Misfire
Sparratic Misfire Cylinder 1
Sparratic Misfire Cylinder 2
Sparratic Misfire Cylinder 3
Sparratic Misfire Cylinder 4
Running lean

thats from the ECU-CEL, here is what I am experiencing

Backfiring when boosting
Backfiring before turbo spooles up
Serious surging problems
Major Loss of power (limp mode more constant)
Spparratic times when it boosts properly (more not than often
Very rough idle

I am about this [ ] close to selling this car because no one is capable of diagnosing the problem.