VSS reads very high
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VSS reads very high
Has anyone else noticed that their VSS reads at least double what it should? Mine both do, front and rear. It has me totally confused. I will get a log up soon. Here is my msq though. Reading the 5 teeth bolting my rotor to my hub with DIYs Hall Sensor.
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Re: VSS reads very high
Here is a quick datalog of me driving through a parking lot in 1st gear. This is not a land speed car, 3100 rpm is not 51mph in 1st. Is anyone else seeing bizarre stuff like this when triggering off of teeth? There are 5 mounting tabs on the back of each rotor.
Do I just have the settings wrong somehow? They feel pretty straight forward to me. Is there a metric to American conversion in there somewhere that I am missing? Thanks for any help you guys can offer.
The car has an MS3-Pro, running 1.5 beta1 firmware.
I have found that putting in a value of 10 teeth helps with the speed. Not sure how accurate it is though.
Do I just have the settings wrong somehow? They feel pretty straight forward to me. Is there a metric to American conversion in there somewhere that I am missing? Thanks for any help you guys can offer.
The car has an MS3-Pro, running 1.5 beta1 firmware.
I have found that putting in a value of 10 teeth helps with the speed. Not sure how accurate it is though.
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Re: VSS reads very high
I've used that feature a number of times and it works ok. Is there any chance that your sensor might be reading two edges somehow?
James
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
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Re: VSS reads very high
I had this same thing happen targeting the rear of the wheel studs on my application. There are little divots in the studs and the sensor is sometimes seeing two events. I was advised to pull the sensor back from the studs until I saw the problem go away, but I have not had time to pull the wheel hub and adjust. Instead I am using the pulses per mile where it is easy to do the conversion math to get the sensor to read correctly based on GPS speed as a stopgap measure.
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Re: VSS reads very high
Okay, that actually makes sense. I have had the feature work fine previously. I adjusted my rear one the other dash and now it reads double, my mounting tabs have a flush mounted allen head bolt in them and i know for sure that the sensor is passing over the keyhole. I didn't realise that would count as an edge. Makes complete sense though. Thanks!
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Re: VSS reads very high
Hope you get it sorted! Please update if this was the issue.