Tapping 5V power from the ECM

[Sleeper-6]

I picked up a sensor for logging fuel pressure and I was going to build a small 5V power supply with a voltage reg for it but just had another idea. Is there any down side to tapping the 5V feed to the TPS or MAP sensor from the ECM and using that to power it? Current draw should be very low (10mA max) so as long as the ECM drivers aren't borderline in their output I'm guessing it should work. Any comments?

Here's a link to the sensor.
10 Bar (150 PSI) fuel/oil pressure sender, 1/8 NPT. [AUBER-105] - $62.00 : auberins.com, Temperature control solutions for home and industry

 

[aminga]

Nope, I bought my fuel and alky pressure senders from Julio and they came with a ready made harness that plugged into the MAP for power

 

[Sleeper-6]

I'm confused. You say nope, but it sounds like the harness you bought does exactly what I'm describing. (taking power from the MAP)

 

[aminga]

I'm confused. You say nope, but it sounds like the harness you bought does exactly what I'm describing. (taking power from the MAP)

Nope there is no downside.

 

[Sleeper-6]

Ok, Got it.

 

[aminga]

You could also tap the TPS for 5V power