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Fuel pressure sender question EBL

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Old Dec 2, 2011 | 10:07 AM
  #1  
kataklysm01's Avatar
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Fuel pressure sender question EBL

So, I'm thinking of putting one of these on the dash.

http://www.glowshiftdirect.com/blue-...ure-gauge.aspx

The senders are rated from say 10 -180 ohms, what does that translate to in voltage? I'm a little rusty on Ohms law. If the voltage going in is 12V, what should the outgoing V be when affected by a resistance?

I should be able to hook this up to the EBL and create a fuel pressure device if I know the voltage span. yes/no?

Unless someone has a better idea?

Last edited by kataklysm01; Dec 2, 2011 at 11:39 AM.
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Old Dec 2, 2011 | 04:02 PM
  #2  
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: Fuel pressure sender question EBL

Whatever you do, do not connect 12 V to the EBL ADC inputs. The maximum voltage is five (5 V).

As for using that sender, I'm not sure if it will work with the EBL. Some gauges have a data logging output that is linear. If it is within the 0 - 5 volt range that will work with the EBL.

Many users (including myself) use the AutoMeter pressure transducers. They take a 5 V source and output a linear 0.5 - 4.5 V range. The devices are also built into the WUD so no need to create a user device.

The 5V power source can be obtained from the MAP/TPS reference voltage.

RBob.
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Old Dec 2, 2011 | 05:22 PM
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Re: Fuel pressure sender question EBL

A 'transducer', sounds like something out of a 1930s sci-fi comic. Is that going to teleport me in and out of my jeep?

Alright, so Summit carries a Holley version of the atomic blackhole accelerating transducer. Specs match the 5V source, linear 0.5-4.5V, 0-100psi.

http://www.summitracing.com/parts/HLY-554-102/

Thanks mucho for the instructions.

I've got so many Summit stickers laying around, my 4 year old told me she was sick of them tonight. She gave 'em back to me. Sheesh.

I suppose you could wire one of those for oil pressure and set the EBL to shut off the engine if the oil pressure dropped below a threshold. If the EBL had such an option.

Last edited by kataklysm01; Dec 2, 2011 at 05:27 PM.
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Old Dec 2, 2011 | 07:09 PM
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Engine: 383 +EBL Flash
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Re: Fuel pressure sender question EBL

Also Autometer 2246 (0 to 100 PSI). For TBI system use Autometer 2239 (0 to 30 PSI).

//RF
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Old Dec 3, 2011 | 10:45 AM
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Re: Fuel pressure sender question EBL

Can EBL make use of the fuel pressure signal besides the usage in WUD for logging purposes? Does the ECM use the values to calculate anything?
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Old Dec 3, 2011 | 12:24 PM
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From: Chasing Electrons
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Re: Fuel pressure sender question EBL

Originally Posted by kataklysm01
Can EBL make use of the fuel pressure signal besides the usage in WUD for logging purposes? Does the ECM use the values to calculate anything?
It is for data logging only. Which is important as it confirms that there is a sufficient volume of fuel. Most fuel delivery issues show up during heavy AE and sustained WOT.

RBob.
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