# 2008 Chevrolet Silverado 1500 - ECM?

**URL:** <https://community.cartalk.com/t/2008-chevrolet-silverado-1500-ecm/163773>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [May 3, 2020, 2:19pm UTC](https://community.cartalk.com/t/2008-chevrolet-silverado-1500-ecm/163773 "2020-05-03T14:19:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![christopherwilkinson](https://avatars.discourse-cdn.com/v4/letter/c/f4b2a3/32.png) [@christopherwilkinson](https://community.cartalk.com/u/christopherwilkinson)\
**Post date:** [May 3, 2020, 2:19pm UTC](https://community.cartalk.com/t/2008-chevrolet-silverado-1500-ecm/163773/1 "2020-05-03T14:19:21Z")

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when turn key to on position fuel pump pressures up to 58 psi and immediately drops drops to 0 psi found that all injectors on one side of engine are activated open all new injectors installed. please help is it a bad ecm?

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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:** [May 3, 2020, 11:24pm UTC](https://community.cartalk.com/t/2008-chevrolet-silverado-1500-ecm/163773/2 "2020-05-03T23:24:19Z")

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Unplug the injectors and see if the fuel pressure drops to zero again.

If it does, it’s not the ECM.

Tester

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<div class="post-metadata">

**Author:** ![christopherwilkinson](https://avatars.discourse-cdn.com/v4/letter/c/f4b2a3/32.png) [@christopherwilkinson](https://community.cartalk.com/u/christopherwilkinson)\
**Post date:** [May 5, 2020, 2:32pm UTC](https://community.cartalk.com/t/2008-chevrolet-silverado-1500-ecm/163773/3 "2020-05-05T14:32:12Z")

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It held pressure i ordered a new ecm thank you very much and God bless you