r32 gtr elite 2500 speed sensor

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Heyitzalan
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r32 gtr elite 2500 speed sensor

Postby Heyitzalan » Wed Mar 13, 2019 11:18 pm

I'm trying to get a speed signal from a abs sensor to my elite 2500, I'm not sure which of the two wire from the abs sensor goes to which wire from the elite, i'm assuming the analog input wire?

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HaltechMatthew
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Re: r32 gtr elite 2500 speed sensor

Postby HaltechMatthew » Thu Mar 14, 2019 10:21 am

ABS sensors are not normally wired directly to an ECU. There are different types of ABS sensors and I dont know of anyone who has wired R32 sensors to the ECU to know what type you have.

Most (as in most Bosch units) are two-wire Hall sensors, not reluctor sensors as first thought when you see they have two wires. There are some out there that use reluctor but to check what you have you need a scope to check the signal type. The common Hall type have a voltage applied to one pin usually 8V or 12V. The other pin is a signal wire that requires a pull to ground resistor. The only way to know what resistor to use is to try a number of different values until the signal is pulled low enough to be usable. For the Elite to read it properly it needs to go below 2V on the low side and preferably under 1.5V to get a clean signal. Most of the applications I have seen required 100 to 300ohms, so quite a low resistance.

LenardM
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Re: r32 gtr elite 2500 speed sensor

Postby LenardM » Fri Mar 15, 2019 12:00 am

Can you make an educated guess as to which value is likely to be in the ballpark, Matt?

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HaltechMatthew
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Re: r32 gtr elite 2500 speed sensor

Postby HaltechMatthew » Fri Mar 15, 2019 9:15 am

I have no idea what sensor it is.

I know of someone who used a 220 ohm with a 12V feed on a 350Z sensor but this could be a different setup.

Heyitzalan
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Re: r32 gtr elite 2500 speed sensor

Postby Heyitzalan » Wed Mar 27, 2019 6:41 am

viewtopic.php?f=30&t=13874

i was reading about this post, this guy got it fixed but i couldn't get in touch with haltechadam or the main guy that open this thread, there's no contact info.

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HaltechMatthew
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Re: r32 gtr elite 2500 speed sensor

Postby HaltechMatthew » Mon Apr 01, 2019 2:10 pm

Different problem.

To run an ABS sensor you really need a scope and a resistor wheel. Unless someone has used your exact sensor and trigger wheel there is no easy way to tell you what resistor is needed. We have not done them here because normally it is not connected to the ECU. It can be but you need to do the work. Scopes are cheap and it is the way to get it working without breaking anything.


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