Cylinder 4 Misfire

Tiny
BENJ832
  • MEMBER
  • BUICK PARK AVENUE
Can someone please help me out. I have a 1997 Buick Park Avenue. 3.8 L V6 with the Supercharger. I am trying to get this vehicle to past inspection. The check engine light is on so I had the code read. It's saying that there is a Cylinder 4 misfire detected. I have replaced the wires and plugs. I am almost certain that it is a bad injector but I don't know which one. How can I tell?
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Thursday, June 7th, 2007 AT 7:26 PM

1 Reply

Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
Swap the #4 injector with another cylinder and see if the misfire changes position. If so the fuel injector is bad or you can use this guide to help as well

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Please go over this guide and get back to us.
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Thursday, June 7th, 2007 AT 7:53 PM

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