Hi, first time poster here. I just recently purchased a 2000 S40 with 108k on it. It had codes P1446 P0037 P0505 P0245 P0031 P0130 and P0445. It would start after 10-15 revolutions and run rough. It would stall if I didn't keep my foot on the gas. My reader said to change the PCV valve. I did that j...