nGauge + Lund Boost Box Omega + Analog Input Wiring

[Gee]

Looking to see if anyone has successfully added a sensor to the ngauge using the analog input harness from Lund for their boost box omega.

Scenario:
- Boost box connection to ngauge takes up all 6 pins on back. By doing this Lund effectively moved wiring of the second analog input to their device.
- Lund sells an analog input harness to wire up a second sensor (vac/boost reference is on analog input 1 - and works phenomenally btw)
- The harness has 3 wires (Red - 5V sensor power, Black - ground, Yellow - 0-5V input)
- From what I've read you can wire up a sensor, however I'm conflicted about the need for a pull-up resistor.
- After reading ngauge and zeitronic manuals (designed to work together), both mention that if you wire up a 2-wire sensor to user input 1 of the zeitronic Zt-2 or to either of the ngauge analog inputs, you need to wire in a 1Kohm resistor. It's documented in both mfg manuals.

Just trying to gather some user input from those that have done it. My intention is to add a 1/8" NPT IAT sensor to the p/s of the whipple lower. I ordered an AEM 30-2014 sensor, have transfer function and this is the last part I'm looking to confirm from real life users.

Sponsored

 

[turnswrench]

I have a fuel pressure sensor wired into my Omega Boost Box which feeds the ngauge through the existing connection as you mentioned. No resistor, no issues. Hope this helps you.

 

[Gee]

Thanks, but assume your pressure sensor was 3-wire, correct?

 

[Gee]

ArcaneP2 (partnered with Lund to make the boost box) was nice enough to respond via FB chat and confirm the need to use a pull up resistor (1K ohm, 1/4w) for the AEM 30-2014 air sensor. Assume anyone running a 2-wire resistance sensor would need to do the same.

Red wire (5V) -> 1k ohm resistor -> "sensor input"
Yellow wire (input) -> connect to "sensor input" side of resistor
Black wire (ground) -> sensor ground

 

[Bmaughan]

ArcaneP2 (partnered with Lund to make the boost box) was nice enough to respond via FB chat and confirm the need to use a pull up resistor (1K ohm, 1/4w) for the AEM 30-2014 air sensor. Assume anyone running a 2-wire resistance sensor would need to do the same.

Red wire (5V) -> 1k ohm resistor -> "sensor input"
Yellow wire (input) -> connect to "sensor input" side of resistor
Black wire (ground) -> sensor ground

Was the sensor not a 5v?

 

[Gee]

Was the sensor not a 5v?

The AEM sensor, (like most automotive 2-wire air/liquid resistance type sensors) is designed to work with 0-5v inputs, but requires the additional pull-up resistor to act as a voltage divider to properly scale the reading of the sensor to 0-5v.

 

[Bmaughan]

The AEM sensor, (like most automotive 2-wire air/liquid resistance type sensors) is designed to work with 0-5v inputs, but requires the additional pull-up resistor to act as a voltage divider to properly scale the reading of the sensor to 0-5v.

oh it was a two wire sensor... I thought it was a 3 wire... I was gonna say I’m pretty sure pull up resistors are only for ground switched components.
Got it

Sponsored