Hello, I am new to this forum, I've owned several SC400's over the past 15 years. I currently am driving a 1994 V-8 Coupe. In regards to fuel starving issues I'm reading, I have the following info. My 94 SC400 recently is stalling out as though it's loss of fuel, with no regularity. Always restarts, sometimes runs for seconds to 1/2 hour, but always dies out eventually. It has sputtered out from just 2 minutes of running to an hour or more. I recently have been using premium gas only and since, this condition has occurred. Considering a tank full of BAD gas, I've been recommended adding dry gas, to displace water moisture, changing the fuel filter and draining and replacing fuel. I've done all of the above with no change in symptoms. After investigating further, this and other forums recommend fuel pump control unit, fuel ecu- are these two in the same please ? Also, TPS-throttle position sensor. I'm trying process of elimination, will replace the TPS tomorrow and hope for success, Any suggestions will be appreciated, thanks to all, a very welcome forum. Larry