Hi, im tring to connect the MS309 to my 96` Volvo 850 2.5 (OBDII compatiable) and when i set it to scan the readout gets to the kwp2000 and then i get the "linking error" mesage. Ive tried all the tips in the manual and the ms309 is a brand new unit, so im wondering if this is indicating that the ecu on the volvo is starting to go faulty as im also having air/fuel ratio problems after replacing the sensor (rough running over 2800 rpm and idle cutout when cold) which is why i bought the ms309 in the first place to find out whats wrong (also, check engine light is on) If anyone could help out here id be grateful!