Speedo sensor
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From: New England
Originally Posted by Stratocaster,Oct 17 2007, 12:34 PM
I would assume that is would be compatible. The Hall Effect sensor is a very commonly used sensor for speed. It takes a 5volt referance signal, a ground connections and the speed output. You will have to adjust the display using it's supplied configuration software to display the proper speed for the signal wave from the sensor.
I too plan on using a digital dash, but mine will use a GPS for speed.
Thanks
Jeff
I too plan on using a digital dash, but mine will use a GPS for speed.
Thanks
Jeff
I heard if the speed sensor don't get 5V, the engine will go to limp mode.
Is this right?
Which among the 3 wires I need to send signal WHT/Blue ?
By the way, you said you will be using the digidash too, what is your project?
Do you have Lotus 7 too?
How does the GPS speeed works?
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From: Indian Land SC
I don't think the ECM goes into limp mode because of a missing speed signal. It will generate a CEL and the EPS may shut down, but I've not heard of a limp condition caused by no VSS.
Note - compatibility with after-market speedos is not going to be a problem because of the signal voltage, but might be a problem because of the signal rate. A typical car generates the VSS from the drive shaft or something close to it - giving about 4 pulses for every wheel revolution. The S generates almost 200 pulses per revolution. Check the specs and see if your doo-hickey can handle that fast a signal.
Note - compatibility with after-market speedos is not going to be a problem because of the signal voltage, but might be a problem because of the signal rate. A typical car generates the VSS from the drive shaft or something close to it - giving about 4 pulses for every wheel revolution. The S generates almost 200 pulses per revolution. Check the specs and see if your doo-hickey can handle that fast a signal.
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From: Calgary
Originally Posted by lotus7racer,Oct 17 2007, 11:49 AM
The steering one!!!
Did you read the features and the options you can put it on?
its amazing huh, its infinite!
Boost gauge--GPS--HP reading-circuit racing ohhhh you name it!
That thing is really good for those x-box kids and for gadget man......hahahaha!
http://www.etbinstruments.com/DigiDa...e_Overview.htm
Did you read the features and the options you can put it on?
its amazing huh, its infinite!
Boost gauge--GPS--HP reading-circuit racing ohhhh you name it!
That thing is really good for those x-box kids and for gadget man......hahahaha!
http://www.etbinstruments.com/DigiDa...e_Overview.htm
You're not going to be having CELs visible though through it are you? If not just scrap the VSS and go with the GPS to simplify it!
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From: New England
Originally Posted by modifry,Oct 17 2007, 08:37 PM
I don't think the ECM goes into limp mode because of a missing speed signal. It will generate a CEL and the EPS may shut down, but I've not heard of a limp condition caused by no VSS.
Note - compatibility with after-market speedos is not going to be a problem because of the signal voltage, but might be a problem because of the signal rate. A typical car generates the VSS from the drive shaft or something close to it - giving about 4 pulses for every wheel revolution. The S generates almost 200 pulses per revolution. Check the specs and see if your doo-hickey can handle that fast a signal.
Note - compatibility with after-market speedos is not going to be a problem because of the signal voltage, but might be a problem because of the signal rate. A typical car generates the VSS from the drive shaft or something close to it - giving about 4 pulses for every wheel revolution. The S generates almost 200 pulses per revolution. Check the specs and see if your doo-hickey can handle that fast a signal.
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From: in my garage
Originally Posted by modifry,Oct 17 2007, 08:37 PM
I don't think the ECM goes into limp mode because of a missing speed signal. It will generate a CEL and the EPS may shut down, but I've not heard of a limp condition caused by no VSS.
Could NOT run at highway speeds and certainly couldn't VTEC.
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From: New England
Originally Posted by freq,Oct 18 2007, 08:03 AM
Happened to me.
Could NOT run at highway speeds and certainly couldn't VTEC.
Could NOT run at highway speeds and certainly couldn't VTEC.
Is the sensor bad?
There are 3 wires, looking at the book I can't find which is 12V, which is ground and which one is the sensor.
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From: New England
Originally Posted by Stratocaster,Oct 18 2007, 09:38 AM
What book are you looking at? The Service Manual, or the Electronic Troubleshooting Manual (ETM)?
I'm not too happy with the service manual books wiring. I wish there is a traditional one page wiring. I haVE to chase all over the follow the wires.
Ex.. the speed sensor (VSS), I found the troubleshooting but I can't figure out which wire code is 12V, Grn and sensor.
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The sensor is a Hall Effect sensor. Looking that the Helms manual. There are three pins. The center pin is Ground. Pin 1 is signal and pin 3 is 5V referance.
From the looks of the information on the dash link you supplied, it looks like your dash supports only an induction sensor for speed. That is an older sensor type and it works with two wires.
So it looks like if you want to connect your dash to a speed sensor, you will need to install an induction speed sensor.
From the looks of the information on the dash link you supplied, it looks like your dash supports only an induction sensor for speed. That is an older sensor type and it works with two wires.
So it looks like if you want to connect your dash to a speed sensor, you will need to install an induction speed sensor.