P0300 - Multiple misfires.
P0101 - Mass Air-Flow system Performance.
This should be the one causing the problem. Check the connectors and clean the MAF and retry. If codes still come back, you might need to replace the MAF.
P0756 - 2-3 shift solenoid performance or stuck off.
This is a transmission control problem which can be due to engine performance. Engine truoble codes takes precedence over other codes so we can leave this aside first.
Get the P0101 code resolved first and erase trouble codes and go for a test drive to see if the codes comes back.
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Wednesday, September 5th, 2012 AT 1:01 PM