Swede

Anyone know what the total amperage draw from the 5VZ-FE is?

vasinvictor

iTrader: (3)

Very little I'd say. A few or 10 amps maybe? You've got fuel pump, injectors, throttle body (if DBW), coil packs, ECU, and a few sensor. That's the majority of them anyway. Scientifically, I dunno

Swede

Well I just found out. I got to work and threw an ammeter on it.

20 amps - Engine running only
30 amps - Engine running + Headlights on (low beams)
40 amps - Engine running + Headlights + Wipers + Heater fan on full.