I've tried searching and can't come up with any answers. After the mpfi swap in my 91 Dx the car will start and run for about 3 sec and then shut off. If I hold the throttle open it will stay running. I have checked the tps and its at .50 at idle and 4.5 wot. All the grounds are good. What else would cause this?

Thanks,
Mike

 

its gota be something in the wireing. do you have a cel?