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03-25-2020
I'm saying that if #1 is 50psi lower than all the rest, it will cause a misfire code to be thrown.
The crank learn requires a scan tool that is capable, HP Tuners or an Aeroforce gauge. There are likely other tools that will do it as well. Dealer can perform it too.
03-26-2020
Today I pulled #1 plug and one other. #1 compression was just as good as the other cyl so I think compression is no longer a question. Fuel rail press is 50psi. So I am stumped. Sooooo, new plugs. wires, Ive eliminated compression, fuel press, new injector, coil, ICM.
So, I am thinking it has to be a crank relearn like you suggest. My scan tool wont do that, so I think Im just going to have to have her take it into a dealer for that.
Atleast it has kept her daughter home during these lockdown day of the virus, so parent are happy.
Thank you all for your help and best wishes in these virus days.
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