when i start my car [90 500sl] after sitting overnight it will run fine for about 3 min then it looses power and runs sluggish, if i break the circuit by quicky turning the key off then on while moving, the car regains power as if nothing was wrong. What it cost so far, fuel pump O2 sensor new emu etc just waiting on another car to come in so i can trade ignition mod. It also only runs 60 -80 sec in cruise then cruise cuts out Nobody knows how to fix this thing and it just keeps costing money