How to Determine Which Cylinder is Misfiring Using HP Tuners

This video will show you how to use your HP Tuners scanner to determine which cylinder is misfiring.

0:40 We don't recommend you go around touching the headers to see which one is cold
0:48 You could use an IR Gun
1:00 a much easier way would be to use your HP Tuners scanner which has misfire counters built in
1:15 First step is to select misfire channels that we need to get the data
1:28 great shortcut is to use the text filter option
2:15 You can see they turn blue once they have been added to the channels list
2:48 you can see the live scan working here
3:10 You can see in this scan we have a lot of misfires in all the cylinders due to the huge camshaft that we have installed
3:43 let's now add History misfires
4:48 using the data from this 1 min 20 second scan you can see it's safe to say we have a misfire in cylinder #1
5:04 Now we know we can focus on cylinder 1 to get back the robbed horsepower.

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