More AE questions
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From: York, SC
More AE questions
I have two questions about my AE scantool.
First I can't quite figure out the sampling rate system they use. I just did some datalogging and had the sample rate set at the lowest value (1). The way I understand the way it is set up the sampling rate number they use is how ofter. So the way I see it at a smaple rate of 1 ans i think that they use milliseconds, the scantool should take a datapoint every millisecond. Mine is taking one every .8 s. This is nowhere near as fast as I want it to.
This leads to my second question. Has anyone ever seen the "cam position sensor status" on the scantool actually read 1. I'm pretty sure that my CPS is going bad and it has stumbled once and died on me once today. Both time I was recording data with the AE but both times it did not show that CPS status going to 1. I think this is because of my sampling rate issue.
Thanks
Darin
First I can't quite figure out the sampling rate system they use. I just did some datalogging and had the sample rate set at the lowest value (1). The way I understand the way it is set up the sampling rate number they use is how ofter. So the way I see it at a smaple rate of 1 ans i think that they use milliseconds, the scantool should take a datapoint every millisecond. Mine is taking one every .8 s. This is nowhere near as fast as I want it to.
This leads to my second question. Has anyone ever seen the "cam position sensor status" on the scantool actually read 1. I'm pretty sure that my CPS is going bad and it has stumbled once and died on me once today. Both time I was recording data with the AE but both times it did not show that CPS status going to 1. I think this is because of my sampling rate issue.
Thanks
Darin
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sample rate
i have noticed that same thing. there seems to be a bigger gap than there should. Sometimes i think this causes an issue when something is changing in the engine, it records one sensor during the change, but the other might be just before or after it. . . therefor hard to see whats all reacting to a change. I know the more you are monitoring. . . the slower its supposed to be. I've never tried just one sensor. . . But I'll give it a whirl.
tim
tim
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I tried one sensor today but someting went wrong and it wuit recording then the next time i wnet somewhere I accidently used the same file name and wrote over it. I'm going to try again tomorrow and see if I can figure it out.
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From: York, SC
I ran this morning with only one sensor recording. I set the sample rate as high as it would go (5000 in the box this puts the slider all the way to the right on the 5sec side). Just finished looking at the data file and it looks like the samples are about .045 sec. apart. this is the fastest I've seen it sample so far. Next time i go somewhere i will see if it will do the same thing with multiple sensors
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From: Las Vegas,nv
Originally Posted by amiller93
It depends, for a P0344 to set the light the error must occur 3 times in a single drive cycle or 1 time in 3 consecutive drive cycles. So you could see a 1 and not have a light.
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From: York, SC
Originally Posted by redneckboy
From another post i had made
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From: York, SC
Not seeing a 1 on the AE system is what makes me think that it may not be a CPS going bad. But all of the symtoms match. The only reason I haven't already replaced it is the stumbles and stalls have been few and far between lately. So i wouldn't know if it fixed the problem.
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From: York, SC
I'm thinking that the AE system just will not sample fast enough. I usually work with DAQ systems that will take 10000 data points in .08 seconds (thats 125kHz or 125000 samples per second) The best I have seen AE do is about 20Hz or a little more. About .045 seconds between samples
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From: Central, Al
EEC-V sends out information at a rate of about 20 samples per second. Therefore, the more parameters you monitor, the slower they will update!
For instance if you select 20 different parameters they will only update once a second. If you select 10 different parameters they will update twice each second.
For instance if you select 20 different parameters they will only update once a second. If you select 10 different parameters they will update twice each second.