# Replaced engine, fuel pump has no power

**URL:** <https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402>\
**Category:** Maintenance/Repairs\
**Tags:** honda\
**Created:** [December 10, 2019, 2:47pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402 "2019-12-10T14:47:08Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![dkrowe9\_160763](https://avatars.discourse-cdn.com/v4/letter/d/71c47a/32.png) [@dkrowe9\_160763](https://community.cartalk.com/u/dkrowe9_160763)\
**Post date:** [December 10, 2019, 2:47pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/1 "2019-12-10T14:47:08Z")

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My friend just replace the engine in my sons 2008 Honda Civic Cpe. He was able to get it to run by introducing fuel by hand but the fuel pump doesn’t have power. The fuel pump worked before. We tried new relays and fuses, still no power to it. We tried the relays under the steering wheel and the ones under the hood. The new engine seems ok. Something isn’t sending power to the relay I believe. Please Help.!

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**Author:** ![pyrolord314](https://avatars.discourse-cdn.com/v4/letter/p/6a8cbe/32.png) [@pyrolord314](https://community.cartalk.com/u/pyrolord314)\
**Post date:** [December 10, 2019, 3:22pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/2 "2019-12-10T15:22:57Z")

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Are all of the grounds reattached firmly?

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**Author:** ![dkrowe9\_160763](https://avatars.discourse-cdn.com/v4/letter/d/71c47a/32.png) [@dkrowe9\_160763](https://community.cartalk.com/u/dkrowe9_160763)\
**Post date:** [December 10, 2019, 3:28pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/3 "2019-12-10T15:28:38Z")

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I will double check…

All other electrical components seem to work fine.

Thank you !

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**Author:** ![tcmichnorth](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tcmichnorth/32/25126_2.png) [@tcmichnorth](https://community.cartalk.com/u/tcmichnorth)\
**Post date:** [December 10, 2019, 3:58pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/4 "2019-12-10T15:58:21Z")

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Locate the fuel inertia cut off switch?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [December 10, 2019, 8:13pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/5 "2019-12-10T20:13:40Z")

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Did you replace both PGM/FI relays?

Tester

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**Author:** ![dkrowe9\_160763](https://avatars.discourse-cdn.com/v4/letter/d/71c47a/32.png) [@dkrowe9\_160763](https://community.cartalk.com/u/dkrowe9_160763)\
**Post date:** [December 10, 2019, 8:15pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/6 "2019-12-10T20:15:10Z")

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Ok, then what? Replace it.

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**Author:** ![dkrowe9\_160763](https://avatars.discourse-cdn.com/v4/letter/d/71c47a/32.png) [@dkrowe9\_160763](https://community.cartalk.com/u/dkrowe9_160763)\
**Post date:** [December 10, 2019, 8:16pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/7 "2019-12-10T20:16:27Z")

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I did try that…

As well as the fuel pump relay.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [December 10, 2019, 8:22pm UTC](https://community.cartalk.com/t/replaced-engine-fuel-pump-has-no-power/154402/8 "2019-12-10T20:22:15Z")

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There’s two fuel pump main relays.

Relay 1 is located under the hood, and relay 2 is located under the dash.

Tester