# 2002 Chevrolet 2500 = PO306

**URL:** <https://community.cartalk.com/t/2002-chevrolet-2500-po306/156952>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [January 21, 2020, 1:56am UTC](https://community.cartalk.com/t/2002-chevrolet-2500-po306/156952 "2020-01-21T01:56:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Avjr385\_162356](https://avatars.discourse-cdn.com/v4/letter/a/8e8cbc/32.png) [@Avjr385\_162356](https://community.cartalk.com/u/Avjr385_162356)\
**Post date:** [January 21, 2020, 1:56am UTC](https://community.cartalk.com/t/2002-chevrolet-2500-po306/156952/1 "2020-01-21T01:56:35Z")

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Po306 came on and I replaced the coil. Trucks starts running fine then power cut off the #6 cylinder. But comes back on in a short while. I replaced all 8 plugs and wires. But break my head trying to figure out this problem. Could fuel injector be the problem? I mean could a bad injector send a signal to the ecm to not power up coil to pass a spark?

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**Author:** ![eddo](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/eddo/32/2594_2.png) [@eddo](https://community.cartalk.com/u/eddo)\
**Post date:** [January 21, 2020, 7:53pm UTC](https://community.cartalk.com/t/2002-chevrolet-2500-po306/156952/2 "2020-01-21T19:53:41Z")

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what engine we working on here?

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<div class="post-metadata">

**Author:** ![Avjr385\_162356](https://avatars.discourse-cdn.com/v4/letter/a/8e8cbc/32.png) [@Avjr385\_162356](https://community.cartalk.com/u/Avjr385_162356)\
**Post date:** [January 22, 2020, 12:52am UTC](https://community.cartalk.com/t/2002-chevrolet-2500-po306/156952/3 "2020-01-22T00:52:16Z")

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It’s a 6.0 gas