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Discussion Starter · #1 ·
I have a 95 4 cylinder that's been having an intermittent miss. Today it finally got bad enough to throw a code. Code 27 which is a fuel injector fault. I checked all the connectors and they looked fine, all four injectors seem to be firing properly. What else can I look for?
 

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Do some reading in this thread QUE is a guru. Also pull all four plugs and see what they tell you. Plugs tell the story if its in one cylinder and that will narrow down the injector you are dealing with.

95 YJ 4.0 with engine code 27 - JeepForum.com
 

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Discussion Starter · #3 ·
Just a quick update, cleaned all the injector connectors as well as all connectors running to and from the injector harness and sealed them with dielectric grease. Problem seems to have gone away for now.
 
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