Notices
PCM Diagnostics & Tuning HP Tuners | Diablo | Pantera EFI

Wiring Fuel Pump Relay to Grn/Wht Wire. Wire is always hot

 
Old 08-29-2014, 12:57 PM
  #1  
Teching In
Thread Starter
iTrader: (2)
 
Join Date: Jun 2014
Posts: 21
Default Wiring Fuel Pump Relay to Grn/Wht Wire. Wire is always hot

Hey all,
I'm finishing up my harness modifications for my LQ9 BMW E36 swap. There's one thing i can't seem to figure out. I've looked at the pinouts a million times. I'm using the green with white stripe wire from Pin 9 of the red connector. I've looked at my bin, and i believe it's set to 30 seconds fuel pump run time before start (which seems REALLY long, but it's a totally stock file untouched aside from VATS removal). The fuel pump relay control wire stays hot. It never shuts off after 2 seconds, 30 seconds, or any amount of seconds.

Any ideas? IDK why this would matter, but some of the sensors aren't plugged in at the moment (crank position sensor is the only one i could possibly imagine that could affect this as maybe the PCM thinks the car is running?)

Input is greatly appreciated!

-Jordan
oldcarguy85 is offline  
Old 09-01-2014, 03:04 PM
  #2  
Launching!
 
Join Date: Dec 2011
Location: Alabama
Posts: 235
Default

If you don't have your throttle body plugged up I believe it will do this.
homemade87 is offline  
Old 09-01-2014, 04:38 PM
  #3  
Teching In
Thread Starter
iTrader: (2)
 
Join Date: Jun 2014
Posts: 21
Default

That would make sense. I'm waitin on the correct tac module so that could be the issue. I plugged in a spare pcm I had which just so happens to be DBC and it primed perfectly for 2 seconds. I'll follow up once I get the TAC module hooked up.
oldcarguy85 is offline  
 


Thread Tools
Search this Thread
Quick Reply: Wiring Fuel Pump Relay to Grn/Wht Wire. Wire is always hot


About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: