Code 307 on a 99 5.3

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Code 307 on a 99 5.3

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Wesley Murphy

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Since: Mar 14, 2005
Posts: 1

(Msg. 1) Posted: Mon Mar 14, 2005 10:54 pm Post subject: Code 307 on a 99 5.3 Archived from groups: alt>trucks>chevy (more info?)

I keep getting a code 307 on a 99 5.3 accompanied by a miss. I've tried switching the plug, wire and coil on the number 7 cylinder but it keeps missing and throwing the same 307 code. Tomorrow I'm going to try switching a fuel injector to see if that is my problem. Can anyone recommend anything else that I should look at before going to the trouble of switching an injector? Just in case there is any confusion (on my part) I am considering the #7 cylinder to be the one on the driver's side closest to the firewall.. A point in the right direction would be appreciated! Wes >> Stay informed about: Code 307 on a 99 5.3

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