Thread: Won't idle
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Old 12-22-2021, 12:59 PM   #14
142 guy
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Join Date: May 2014
Location: Saskatchewan, Canada

If it needs starting fluid to start, that is not a warm up enrichment problem. That is a priming and cranking fuel pulse width problem. Once the engine fires and gets above the cranking versus running transition RPM then the fuel injection switches to the fuel equation and running off the fuel map with the warm up correction added into the fuel equation.

Don't spend time trying to refine your warm up until you have your base fuel map close to sorted out. The warm up correction is added to the pulse widths derived from the base fuel map values and if you end up making material changes to the fuel map you will screw up your warm up.
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