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2001 Toyota Tundra Limited, Fuel Supply Waveform
Posted to the Waveform Library on 7/8/2016

Video clip showing waveform viewer capturing fuel pump current, direct power was applied to pin 4 of the fuel pump relay socket using a power probe.

Note for archives, fuel pump has two speeds. High speed is via pin 4, low speed is through the FP resistor pi...

 

car Vehicle Data

2001 Toyota Tundra Limited 4.7L

Engine4.7 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemFuel Supply
Component
ConditionKnown Bad

References

TOOL: Hantek Scopes

car Vehicle Data

2001 Toyota Tundra Limited 4.7L

Engine4.7 L / 8 cyl / GAS
Trans4-speed AutomaticTransmission (Electronic)
DeliveryFuel Injection
SubsystemFuel Supply
Component
ConditionKnown Bad

References

TOOL: Hantek Scopes