1986 Volvo 760 has a problem that the Volvo dealer nor I can resolve. The Car will crank but never start as long as the MAF is connected. When the MAF is disconnected the car will start fine and run fine. Plug the MAF in and the car dies. The MAF, Main CPU, and wires have all been tested. MAF and CPU have been switched with new parts, same problem. NEED HELP!