99 4 runner limited

[mrsteel]

Please help!! This vehicle runs great for about 30 minutes then sputters and dies. All new parts in last 6 months, and all OEM fuel pump, fuel filter,MAF, IAC, plugs wires, coolant temp sensor, cleaned throttle body, new cat, new 02 sensors. no codes or check engine light

 

[Gelthos]

Mine did this last year and it ended up being the cpu.

 

[frm88]

Sounds like one possibility could be something getting heat soaked and failing. I would think it would cause some kind of code but depending on what it is, maybe not. I would try hooking up a obd2 reader and letting it record while it sputters out to see if it gives you any indication as to whats happening.

Sounds like a tricky one! Good luck