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Re: High idle on each start
It was helpful to see that many line of data.
Next time if you can see how to export it as a excel spreadsheet it is easier to view.
First thing you need to do is fix the low voltage problem. The voltage was as low as 12.5 volts. That is low enough that the ECM will raise the RPM because of this. My guess is the truck has an alternator problem.
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For those of you that are wondering why you are not getting replies to your thread:
Did you give the model, year, engine, fuel system type, and transmission information?
If it is modified from what came stock from the factory, let us know that too.
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