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5 pin ecu with single ballast on repop harness??
#3133709
03/30/23 06:22 PM
03/30/23 06:22 PM
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Joined: Oct 2003
Posts: 1,797 BC Canada
ogopogo
OP
top fuel
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OP
top fuel
Joined: Oct 2003
Posts: 1,797
BC Canada
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I have and hope to use a new repop( purchased 10 or more years ago) 71 340 4 speed cuda engine harness,trying to figure out why it is wired for a 2 pin ballast and a 5 pin ecu...how can i make this work? was it made wrong?
Last edited by ogopogo; 03/30/23 06:22 PM.
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Re: 5 pin ecu with single ballast on repop harness??
[Re: ogopogo]
#3133976
03/31/23 04:23 PM
03/31/23 04:23 PM
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Joined: Aug 2007
Posts: 6,098 Valencia, España
NachoRT74
master
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master
Joined: Aug 2007
Posts: 6,098
Valencia, España
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All ECU plugs are ready for 5 pins, no one for 4 pins. If the harness is set for single ballast, then the unused pin wire is arriving nowhere down the harness.
Now, if the harness is set up for dual ballast, then the 5th pin wire (green with red trace) is arriving to the secondary resistor section. Which still if using a dual ballast with a 4 pins ECU, it won’t be any kind of load (althought still voltage present) on ballast secondary resistor or related wiring. Just with 5 pins ECU it will be in real use with some load.
With a Charger born in Chrysler assembly plant in Valencia, Venezuela
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