1991 Mitsubishi Eclipse GSX 2.0L Motor starts and stalls, MPI relay clicks off and the fuel pump stops running

download Tests/Procedures: 1. Check the Electronic Control Unit (ECU) powers and grounds. Powers are at pins #102, 103, 107 and 110. Grounds are pins 101 and 106. 2. Check the ECU control of the Multi-port Injection (MPI) relay. At start-up, the ECU grounds pins 56 and 63 3. If good, replace the Powertrain Control Module [...]