I noticed my check engine light and check VSC light came on randomly yesterday on my 2006 IS350, then the motor started to shudder while accelerating i want to know what the issue is so i can take it to get fixed has anyone else had this issue and what was the repair that solved it? please help.

 

Check what the engine light code is and report back otherwise we can't really help...

 

Dirty MAF sensor? As stated above scan codes and report back. Maf would be my guess.

 

Fuel pump? Of course we can throw ideas out all day; we will need the CEL codes to better pinpoint what's up.