am positive it's p056. and this problem is most noticeable going up hill. I am a wholesaler and do know how to work on some cars, but am trying to eliminate possible issues one by one. The engine was removed and timing chain was replaced as the previous owner stated. maybe, not sure. but the motor is noisy for an 07 with only 110k.
is there a way to check on the MAF? didsconnecting it for example would do what to the problem.
is a noisy motor very common on these? i was told the timing chain was replaced along with the tensioners, but it is very noisy.