Ok so this has been getting mighty annoying. Let me try to explain. ill cruize in 1st. and then i get on it. and boom BZZZ ecu sparks and check engine light blows out. or when i shift (not regular driving just when drivign hard), motor sputters for a second and breaks up, and then starts to pull again. so i think i narrowed it down to 3 possible reasons. 1. the motor is missing some mounts. so maybe it moves too much and hits the firewall (explains shifting and 1st gear cause of the instant power without the mount support might make the motor hit the firewall, and short something. 2. the only ground the motor has is the thermostat ground. so its missing a few. 3. the car might b running peak and hold injectors on a saturated harness. if 3 was the case, wouldnt the injectors go 1st? i think it has somethign to do with somethign shorting out whenever the car shakes alot or flexes alot, due to it doing it when i shift, or when i spray. or when i hit it in 1st gear. anybody got any suggestions?