Power FC Forum Apex Power FC Support and Questions.

Power FC Logging AEM Fuel Pressure Sensor...

Thread Tools
 
Search this Thread
 
Old 10-03-12, 12:22 AM
  #1  
Senior Member

Thread Starter
iTrader: (10)
 
Neutron's Avatar
 
Join Date: Jul 2011
Location: AZ
Posts: 616
Received 72 Likes on 37 Posts
AZ Logging AEM Fuel Pressure Sensor...

I am about to add a AEM fuel pressure sensor to my datalogit and wanted to verify that I am doing it correctly. This sensor requires a 5V power source. I have read that the Fuel Temp sensor is a 5V sensor and this sensor is not being used in my current configuration. The connector has actually been removed from my single turbo harness.

I have been looking through the FSM but have not been able to 100% confirm that the wire from the Power FC for the fuel temp sensor is indeed a 5V power source.

My plan was to power the sensor from the pin off the Power FC that was used for the Fuel Temp sensor. Ground the sensor to the block and run the 0 - 5V signal from the sensor to the datalogit.

Verification that the way I planned to incorporate this sensor to the datalogit for logging is correct or incorrect would be appreciated.
Old 10-03-12, 09:21 AM
  #2  
Rotary Enthusiast

iTrader: (2)
 
CloudPump's Avatar
 
Join Date: Oct 2010
Location: Toronto
Posts: 865
Likes: 0
Received 2 Likes on 1 Post
I'm no electrical wizard but couldn't you just run a 12v lead with appropriate resistors to lower the voltage to 5v?

-Geoff
Old 10-03-12, 12:43 PM
  #3  
Senior Member

Thread Starter
iTrader: (10)
 
Neutron's Avatar
 
Join Date: Jul 2011
Location: AZ
Posts: 616
Received 72 Likes on 37 Posts
I definitely think that is a possibility but I would rather use a 5V source that is already available.
Old 10-03-12, 04:21 PM
  #4  
Rotary Enthusiast

iTrader: (5)
 
tom94RX-7's Avatar
 
Join Date: Apr 2005
Location: Pittsburgh, PA
Posts: 1,489
Likes: 0
Received 3 Likes on 3 Posts
Search my posts about using this sensor with datalogit, it's easy, you don't need a 5 volt power source, it puts out a 0-5v output signal, the purple wire connects to the datalogit, if I am remembering correctly.
Old 10-03-12, 05:21 PM
  #5  
Rotary Enthusiast

iTrader: (5)
 
tom94RX-7's Avatar
 
Join Date: Apr 2005
Location: Pittsburgh, PA
Posts: 1,489
Likes: 0
Received 3 Likes on 3 Posts
Sorry I was thinking about my autometer fuel pressure sending, I don't know about the aem sensor.
Old 10-03-12, 08:21 PM
  #6  
rotorhead

iTrader: (3)
 
arghx's Avatar
 
Join Date: Aug 2004
Location: cold
Posts: 16,185
Received 432 Likes on 265 Posts
link to the AEM one? tapping off of 5 volt reference should be fine. AEM just sells rebadged GM/Delphi stuff.
Old 10-03-12, 08:45 PM
  #7  
Senior Member

Thread Starter
iTrader: (10)
 
Neutron's Avatar
 
Join Date: Jul 2011
Location: AZ
Posts: 616
Received 72 Likes on 37 Posts
AZ

Originally Posted by arghx
link to the AEM one? tapping off of 5 volt reference should be fine. AEM just sells rebadged GM/Delphi stuff.
Just want to confirm. Is the pin from the Power FC that is for the fuel temp sensor is a 5V reference?
Old 10-04-12, 12:52 AM
  #8  
Senior Member

Thread Starter
iTrader: (10)
 
Neutron's Avatar
 
Join Date: Jul 2011
Location: AZ
Posts: 616
Received 72 Likes on 37 Posts
AZ

Originally Posted by arghx
link to the AEM one? tapping off of 5 volt reference should be fine. AEM just sells rebadged GM/Delphi stuff.
Here is a link to the AEM sensor. AEM Sensor
Old 10-12-12, 03:44 AM
  #9  
www.lms-efi.com

iTrader: (27)
 
C. Ludwig's Avatar
 
Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 5,237
Received 131 Likes on 86 Posts
The fuel termosensor does not have a 5V ref. Pin 3I on the ECU is a 5V ref for the TPS. It will work for what you're wanting to do.
The following users liked this post:
mkd (12-14-20)
Old 10-12-12, 10:29 PM
  #10  
Senior Member

Thread Starter
iTrader: (10)
 
Neutron's Avatar
 
Join Date: Jul 2011
Location: AZ
Posts: 616
Received 72 Likes on 37 Posts
Originally Posted by C. Ludwig
The fuel termosensor does not have a 5V ref. Pin 3I on the ECU is a 5V ref for the TPS. It will work for what you're wanting to do.
Awesome. Thanks!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
Snoopy FD
Build Threads
25
12-08-15 01:45 PM



Quick Reply: Power FC Logging AEM Fuel Pressure Sensor...



All times are GMT -5. The time now is 04:17 PM.