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new f4i help

  #1  
Old 11-16-2017, 05:58 PM
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picked up a 02 f4i off a fella who couldn't get it running again I bypassed the bas sensor by snipping the white wire and leaving it plugged in I have power to the relay that triggers when the kill switch turns on and off I grounded the single wire N.saftey switch have 2 ecus original and 06 ecu have extra new ignition and the relay that goes to the pump will not click when turning on any ideas as to what could be? if the fuel pump is dead the relay would still click correct? I plugged one of the ecus backwards at first by accident and got It to click but the fi light stayed on and the fuel pump still didn't turn on. any help would be appreciated I also have multiple relays I have switched back and forth
 
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Old 11-16-2017, 11:47 PM
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Hi Drock, no need to cut any wire's , just unplug the BAS connector and bridge the 2 OUTER wires on the Harness side , a paper clip will do.
 
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Old 11-17-2017, 09:24 AM
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Originally Posted by CaBaRet View Post
Hi Drock, no need to cut any wire's , just unplug the BAS connector and bridge the 2 OUTER wires on the Harness side , a paper clip will do.
So could be the problem even tho it turns over? I thought it wouldn't turn over if I bypassed it wrong? I can't get the fuel relay to click
 
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Old 11-17-2017, 11:22 AM
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Hi ,got to remember some of these wires run on a circuit, if you cut one you breaking the circuit, join that wire up again and just bridge the outer 2 , green and the other red, that will bypass the BAS
 
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Old 11-17-2017, 11:51 AM
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That seemed to work I got the relay to click then few seconds later click and the other relay click when the kill switch moves but no pump prime so I'm guessing I need a new pump now which I have on order but I'll check the contacts in this pump while I wait thanks.
 
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Old 11-17-2017, 12:06 PM
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I've never heard that you snip the white wire to bypass the BAS. I've always known that you jump the outside wires on the connector together to bypass it.
 
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Old 11-17-2017, 12:09 PM
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Yeah I think I saw it somewhere and misread it I think k they snipped the white wire on the bas plug and tied the other two together so they wouldn't have to paper clip the outside wires and tape it up
 
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Old 11-17-2017, 12:31 PM
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Originally Posted by drock295 View Post
That seemed to work I got the relay to click then few seconds later click and the other relay click when the kill switch moves but no pump prime so I'm guessing I need a new pump now which I have on order but I'll check the contacts in this pump while I wait thanks.
Pump could be alright, by all means take the pump out and see if you can get it to run straight of the battery, BUT before you do that just check that green wire at the pump, they are suspect, and remember you can always borrow the headlight relay
 

Last edited by CaBaRet; 11-17-2017 at 12:38 PM.
  #9  
Old 11-17-2017, 12:37 PM
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I swore I had it priming off straight power before all I would do if ground wire to green wire and power wire to brown black? Or solid brown?
 
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Old 11-17-2017, 12:52 PM
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Originally Posted by drock295 View Post
I swore I had it priming off straight power before all I would do if ground wire to green wire and power wire to brown black? Or solid brown?
Yes just Green wire and Brown wire for the pump, the Brown/Black wire is Fuel reserve Sensor
 

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