6.4 tach wire - Ford Powerstroke Diesel Forum
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  #1  
Old 07-21-2007, 10:26 AM
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6.4 tach wire

Has anyone found the tach wire on the 6.4 for a remote start yet
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Old 07-22-2007, 09:49 AM
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You shouldnt need the tach wire if your remote start has the delay built into the unit. I can set mine at 5-10-15 or 20 second dealay before it will start.
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Old 07-22-2007, 09:55 AM
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Sorry about that give you bad advice I was thinking about somthing else the wait to start wire the tach wire is for disengaging the starter once it has started. I will see what I can find for a tach wire.
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Old 07-22-2007, 10:04 AM
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Hey bud yeh there is no setting for delay on this unit it starts great
it just shuts down after 10 secs. it recognizes voltage an 1 volt increase after starting alt. will not increase voltage within that time.
and the tach wire is supposed to let the remote brain know when truck is running to par.
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Old 07-22-2007, 10:39 AM
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No luck on my end but the 2002-2006's the tach wire is the green/white wire located in a 5 pin harness held up by tape behind the parking brake release. Cant say for sure the 6.4 will be the same?
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Old 07-22-2007, 12:39 PM
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After some searching its no longer a green/white but the blue wire now
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Old 07-22-2007, 01:08 PM
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Also if that doesn't work you can try this I guess alot of installers use this on ford powerstrokes. 454T Alternator RPM Monitor / Tach Signal Generator
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Old 07-22-2007, 01:20 PM
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Oh and sorry the blue wire is under the dash at what is called "the customer access point" there is a harness (a big one) with wire's taped up to it. Just like the older Fords. It's a blue wire. It's just there and is connected to nothing. I found this on a electronics installer forum so don't kill the messenger!
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Old 07-22-2007, 06:39 PM
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Found ya a some more info this should get ya set up


12volts
blue/red (x2)(common 20A)
+
ignition harness


Starter blue/white + ignition harness
Second Starter N/A
Ignition white/orange + ignition harness
Second Ignition N/A
Third Ignition N/A
Accessory brown/yellow + ignition harness
Second Accessory purple/green + ignition harness
Keysense blue/lt. gray + ignition harness
Power Lock blue/lt. green - driver kick, door harness
Power Unlock yellow/purple - driver kick, door harness
Lock Motor
Unlock Motor purple/gray 5wi driver kick, door harness
Parking Lights+ purple/white + SJB, conn. D, pin 20
Parking Lights- gray - headlight switch
Hazards
Turn Signal(L)
Turn Signal(R)
Reverse Light green/brown + harness to rear
Door Trigger see notes - each kick or SJB, conn. C
Dome Supervision yellow/gray + SJB, conn. A
Trunk/Hatch Pin
Hood Pin
Trunk/Hatch Release
Power Sliding Door
Factory Alarm Arm
Factory Alarm Disarm
Disarm No Unlock
Tachometer blue/white ac PCM or Customer Access Point
Wait to start see DirectFax document 1091
Brake Wire purple/white + brake pedal switch
Parking Brake white/purple - switch or SJB, conn. C, pin 1
Horn Trigger yellow/red - horn switch
Memory Seat 1 purple/white - driver kick, door harness
Memory Seat 2 yellow - driver kick, door harness
Memory Seat 3 -
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