Hey everyone I'm a new member to this although I did/do a lot of research on them. I have a 02 a4 1.8t amb. Background, I only had the car a couple of months since then I've replace the motor with same engine code I replaced maf,spark plugs( ngk), all 4 coil-packs, n75 valve dv,prv,pvc, turbo, crank sensor, cts,oil cooler, most of the check valves and suction pump, checked hoses for leaks with brake cleaner, the problem I have that's been stalking me is I have p0300 and p0302 codes pulled with vag p0302 (cylinder 2 misfire, static no comunication) has anyone ever came across this I have seen some cases on forms with similar problems but ended up not being my problem also since I been doing research I've replace also my cat it was destroyed by blown turbo and misfires from previous motor. I've swap plugs and coils around and still same problem the car starts no problem and then it goes down hill the tach is pretty consistent and floats around 8 or 9 but is not jumping iraticly or anything,but the motor shakes like crazy! In addition I can hear in the intake area like a put. put.put. And it's coming from out the exhust too.. Any thoughts..
Ps...I've also changs coil wires with pig tails due to cracked wires from the conectors and swap/ changed injectors for that damn cylinder 2 still no sucsses. Plz help I have no problem fixing the car but at this point I have no clue what to replace next

 

I am also having #2 cyl misfire issue, but mine misses when first started but goes away with steady throttle pressure for 10-15 seconds. If I just try to let it idle on its own it will throw an error code (misfire #2 cyl) and will often stall. Once it has been running for 10-15 seconds, it smooths out and runs fine. It's more of an aggravation than a crisis but after replacing the plugs and all 4 coils, I would like to get to the bottom of it. Is there a chance of a leaky injector flooding the #2 cyl?

 

Just to be sure, I'm assuming the #2 cyl is at the back of the engine based on firing order. Am I correct?

 

I had cylinder 2 misfire, pulled P0302 and P0011, I would have changed just one coil, but changed all 4 coils and spark plug and car is running like champ. total cost to replace 4 coils + spark plug $170