I just got my car back from the body shop and when i started it the check engine light came on i tested it for the codes and i am getting code 71 72 73 74 on my 98 GSR. so i guess that would mean random misfire in all of the cylinders. Anyone know what the problem would be or how i can fix this ?

 

I would un plug your ecu and re plug it back up..do this with the bat also...

 

what work was done at the shop?