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How to understand PID's with Infinity

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Old 06-22-2013, 09:33 PM
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How to understand PID's with Infinity

If you have any questions about the PID's on the Infinity, post them here..

I would like to understand the FUELPW(us), it reads in thousands. How do I interpret this??
 
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Old 06-23-2013, 12:05 AM
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Without reading the manual, that looks like Fuel Injector Pulse Width... the amount of time the injectors are held open per cycle. 1000 milliseconds is one second, so a 3 ms pulse width will read 0.0030
 
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Old 06-23-2013, 07:11 AM
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Originally Posted by Tugly
Without reading the manual, that looks like Fuel Injector Pulse Width... the amount of time the injectors are held open per cycle. 1000 milliseconds is one second, so a 3 ms pulse width will read 0.0030
IDK, like I said it reads in 1000's say between 1000-2000 normal driving..I never see 00030, its like 1500 and bounces around @ idle its over 1000.what am I missing??
 
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Old 06-23-2013, 08:41 AM
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Originally Posted by joeyd61
IDK, like I said it reads in 1000's say between 1000-2000 normal driving and your injectors. I never see 00030, its like 1500 and bounces around @ idle its over 1000.what am I missing??
If you're reading in 1000's, then 1000 would equate to 1 millisecond, Your readings are normal for the given numbers and your injectors. For example, I see ~1.7 at cruise speed. You would be seeing 1700 as the number displayed.
 
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Old 06-23-2013, 10:16 AM
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Originally Posted by joeyd61
it reads in thousands.
Oops.... I saw thousandths when I first read that. Sorry.

Those numbers would be consistent with the Fuel Injector Pulse Width (in ms) if you drop 3 zeros. 1500 would equal 1.5 ms. I checked the Infinity data I have on file and the FuelPW is in line with what we're discussing here.

*EDIT* Man... I really need to hit "refresh" before posting. Roland got it long before I did.
 
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Old 06-24-2013, 03:40 PM
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Originally Posted by mueckster
If you're reading in 1000"s, then 1000 would equate to 1 millisecond, Your readings are normal for the given numbers and your injectors. For example, I see ~1.7 at cruise speed. You would be seeing 1700 as the number displayed.
This is correct.
 
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