X15 Efficiency dies for no reason

[Rawze]

most likely sucking air somewhere.

also if it is de-mandated, then you need to copy the program from the ecm and e-mail it to me to have it reviewed, to ensure it is not harmful to the engine. More than 90%+ of all demandate programs out there are absolutely harmful.

Also how many miles/hours are on the fuel pump?. Every 400k miles (or 8,000 hours) the guts of the fuel pump need replacing to prevent severe engine destruction.