Hi, I own 3 Volvo 240 wagons , dark green 93, burgundy 92, silver 92 I kinda love Volvos Anyways, none of them will pass smog. Here is the information I have on the burgundy 92 Volvo. I don’t understand. It runs so smooth. Like a champ! It failed twice! Would come one please tell me why? I hope it d...