Hey , I'm having a problem with my Audi a4 b6 2004 1.8t ( manual trans 6 speed)
... so when ever i drive . it drives OK with no problem .
so when i stop at idle my engine starts shaking and my check engine light keeps blinking for multiple misfires
so i went to mechanic and told me to change spark plugs and coil packs. so i changed them and its still happening then later i changed my mass air flow sensor because it also gave me a code for it , i thought that could fix the problem ... but i didn't. The engine shakes and rpm going up and down like its almost about to shut down the car. and it has shut my car down twice so far . also my boost gauge is also going up/down with the rpm . the rpm is going up/down between 0(after)-1500 , some times near 2000
so i pulled up these codes .... if any one can help me out i would really appreciate.
thx.

Modification:
Miltex exhaust
intake
front mount cooler
APR chip


Thursday,28,April,2011,19:00:46:03335
VCDS Version: Release 10.6.1

Address 01: Engine Labels: 06B-909-518-AMB.lbl
Control Module Part Number: 8E0 909 518 AK HW: 8E0 909 018 A
Component and/or Version: 1.8L R4/5VT G 0003
Software Coding: 0016711
Work Shop Code: WSC 14391 795 435942
VCID: 79F25B5949AB
8 Faults Found:

16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 - Upper Limit Exceeded - MIL ON
16685 - Cylinder 1: Misfire Detected
P0301 - 001 - Upper Limit Exceeded - MIL ON
16687 - Cylinder 3: Misfire Detected
P0303 - 001 - Upper Limit Exceeded - MIL ON
16688 - Cylinder 4: Misfire Detected
P0304 - 001 - Upper Limit Exceeded - MIL ON
16686 - Cylinder 2: Misfire Detected
P0302 - 001 - Upper Limit Exceeded - MIL ON
16683 - Boost Pressure Regulation: Control Range Not Reached
P0299 - 002 - Lower Limit Exceeded - MIL ON
16486 - Mass Air Flow Sensor (G70): Signal too Low
P0102 - 002 - Lower Limit Exceeded - Intermittent
17519 - Oxygen (Lambda) Sensor Regulation: Bank 1: System too Lean
P1111 - 002 - Lower Limit Exceeded - Intermittent

Readiness: 0010 1101


Thursday,28,April,2011,19:05:09:03335
VCDS Version: Release 10.6.1

Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Control Module Part Number: 8E0 614 517 A
Component and/or Version: ABS/ESP allrad 3429
Software Coding: 04275
Work Shop Code: WSC 06435
VCID: 26484025E895
1 Fault Found:

18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent

 

My 2004 A4 1.8t 5 speed automatic 183000k is doing the same thing started this week with the following codes

P0300 random Misfires
P0301 cyl 1
P0302 cyl 2
P0303 cyl 3
P0304 cyl 4 (all four cyl upper limit exceeded)

changed all four coil packs bought from dealer, changed all four plugs stock NGK
still have all codes after clearing but now have the following codes

P0299 turbo underboost
P0135 heated oxygen Sensor bank 1 sensor (i think because fuel is rich
is why I Have to hold accelerator to floor to start otherwise just cranks.)

My thoughts possible bad wastegate valve or charge pressure air sensor or DV NEED HELP PLEASE

 

has it got dullmas flay wheel

 

Sorry... But what??