If 0 PSI = 7 ohms and 120 PSI = 160 ohms, how do I read that in using EFILive?
How do I hook up an external sensor?
If 0 PSI = 7 ohms and 120 PSI = 160 ohms, how do I read that in using EFILive?
2005/2007 DHRA Western Drag Champion
Bonneville A/DT & B/DT Land Speed Record Holder, 197mph best speed.
Casper - 05 GMC 2500 Dmax LLY 10.59 @ 129, 916rwhp
Big Blue - 04.5 GMC 3500SRW LLY 13.12 @ 104, 502rwhp sled puller
Wendy - 06 GMC 2500 LBZ 12.50 @ 107.5 First LBZ into the 12's. 542rwhp.
Blue Meanie - 02 Z06 11.40 @ 121 AFR H/C
I think you need to somehow get this converted to a voltage reading. Can you find a Autometer pressure sender that works from 0-5 volts? That would be key as FS works in those voltage ranges.
Howard
www.redline-motorsports.net
1-954-703-5560
2006 ZO6 895/866 with APS TT
2010 SSRS Camaro HTR-900TT (798/801)
2011 HTR-850R Camaro
2012 ZL1 Auto (10.33@135 MPH) Video Here!
As Howard said, can you translate those values to 0-5 volts...?
I know there is a way to turn ohms into volts, but electricity and I have a mutual non-aggression pact.
I agree that I will not screw with it, and it agrees not to send me to the Burn Ward of the hospital again!
Basically the circuit that inside an ohmmeter will do it, but I do not know how to look it up.
I went to Radio Shack and they said use a resistor. Nope. Even at 20,000 ohms, the voltage stayed at 12v regardless of what the pressure was.
I would like to use these $25 VDO pressure senders that go 0-150 PSI, but they are only Ohm based.
2005/2007 DHRA Western Drag Champion
Bonneville A/DT & B/DT Land Speed Record Holder, 197mph best speed.
Casper - 05 GMC 2500 Dmax LLY 10.59 @ 129, 916rwhp
Big Blue - 04.5 GMC 3500SRW LLY 13.12 @ 104, 502rwhp sled puller
Wendy - 06 GMC 2500 LBZ 12.50 @ 107.5 First LBZ into the 12's. 542rwhp.
Blue Meanie - 02 Z06 11.40 @ 121 AFR H/C
OK, I think I figured it out.
2005/2007 DHRA Western Drag Champion
Bonneville A/DT & B/DT Land Speed Record Holder, 197mph best speed.
Casper - 05 GMC 2500 Dmax LLY 10.59 @ 129, 916rwhp
Big Blue - 04.5 GMC 3500SRW LLY 13.12 @ 104, 502rwhp sled puller
Wendy - 06 GMC 2500 LBZ 12.50 @ 107.5 First LBZ into the 12's. 542rwhp.
Blue Meanie - 02 Z06 11.40 @ 121 AFR H/C
A 300 ohm resistor to 12V and one side of the sensor, the other side of the sensor to ground and connect the middle to EFIlive should do it.
Ira
Post results. Good info.
Howard
www.redline-motorsports.net
1-954-703-5560
2006 ZO6 895/866 with APS TT
2010 SSRS Camaro HTR-900TT (798/801)
2011 HTR-850R Camaro
2012 ZL1 Auto (10.33@135 MPH) Video Here!
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