Thread: 01 2500hd tune up and upgrade ideas
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Old 06-22-2020, 09:48 PM   #6
70cst
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Re: 01 2500hd tune up and upgrade ideas
Quote:
Originally Posted by hatzie View Post
I picked the Delco plugs and Delphi wires because they are OEM. I haven't been disappointed.

What do the misfire counters tell you?

A relative compression test with a scope will tell you a lot about engine mechanical condition.
http://www.youtube.com/watch?v=WKdZsWU2ZmI

Using a scope to view misfires from fueling issues.
http://www.youtube.com/watch?v=NXrd1fYwj1o
Interesting info ... Thanks
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