Got some screenshots I need help with. First one is a 2008 Ford 3.0 OHV in a Ranger. Has the CMP sensor where the distributor used to be. Looking at the waveform, why does it have the little kick on the downside of the voltage line?
Second set of screenshots are a '99 Jeep 4.0 CKP to CMP Correlation. Why does the Modis have a dirtier shot of the CKP sensor on the waveform at 200ms screenshot, but when you change the time to 20ms, it cleans up the waveform considerably? Component test meter tells us that during testing, frequency will change, but Min/Max will not. On one screenshot, it does change on Min/Max, but the other, it does not. I tried it with filter on and off, not much change. At idle, it's a clean waveform no matter the screen time, from 20ms on up to 500ms. I'm fighting a hard-start on this Jeep, and everything I've found this afternoon is pointing towards CKP sensor.
Second set of screenshots are a '99 Jeep 4.0 CKP to CMP Correlation. Why does the Modis have a dirtier shot of the CKP sensor on the waveform at 200ms screenshot, but when you change the time to 20ms, it cleans up the waveform considerably? Component test meter tells us that during testing, frequency will change, but Min/Max will not. On one screenshot, it does change on Min/Max, but the other, it does not. I tried it with filter on and off, not much change. At idle, it's a clean waveform no matter the screen time, from 20ms on up to 500ms. I'm fighting a hard-start on this Jeep, and everything I've found this afternoon is pointing towards CKP sensor.
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