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2013 Tacoma, EFI Relay not activating

Discussion in '2nd Gen. Tacomas (2005-2015)' started by loomisrocks, Jun 18, 2025 at 6:48 AM.

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Jun 18, 2025 at 6:48 AM

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loomisrocks [OP] New Member

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eric

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Fuel pump not running, traced to no enable (positive voltage from ECM) to EFI relay.

Would appreciate any tips.

loomisrocks, Jun 18, 2025 at 6:48 AM

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Jun 18, 2025 at 8:10 AM

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Dm93 Test Don't Guess

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Predator tube steps, Ranch Hand grill guard, Magnaflow CatBack exhaust, Toyota tool box & bed mat, 2LO Module by @Up2NoGood, Rearview Compass/Temp Mirror, Tune by @JustDSM.

What engine do you have and which relay are you checking?

If you have the 4.0L there are 2 relays for the fuel pump, the C/OPN Relay that turns the pump on and off and the Fuel Pump Relay that changes the pump from direct power (High Speed) to power through the Fuel Pump Resistor (Low Speed).

The truck always starts on high speed.

Dm93, Jun 18, 2025 at 8:10 AM

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Jun 21, 2025 at 8:47 AM

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loomisrocks [OP] New Member

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Thank you dm93! Turned out to be fuse to ECM out, no enable signal from ECM

loomisrocks, Jun 21, 2025 at 8:47 AM

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