what are these 3 wires in the tunnel?
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Senior Member
Joined: Sep 2004
Posts: 952
Likes: 6
From: PITTSBURGH, PA
Car: 85 IROC-Z Z-28, BLUE & SILVER
Engine: 5.7L & 5.0L
Transmission: 700R4
Axle/Gears: FACTORY
what are these 3 wires in the tunnel?
im getting ready to pull my engine and have the harness almost out, still have to disco the starter wires and the '3' wires the lead from the harness into the transmission tunnel housing, they disappear up under there somewhere... what are these 3 wires and where can i disconnect them??? thanks 
Joined: May 2006
Posts: 580
Likes: 0
From: Elk City OK
Car: 92 25th anv z28
Engine: 346 TC78 Turbo
Transmission: 4L80E
Axle/Gears: 3.25 9"Nodular, Strange axles
Well that harness runs in the tranny tunnel?? I think its for your VSS (vehical speed sensor) And all your lockup and downshift controls (four prong pigtail that goes into passenger side of trans) Good Luck!
Thread Starter
Senior Member
Joined: Sep 2004
Posts: 952
Likes: 6
From: PITTSBURGH, PA
Car: 85 IROC-Z Z-28, BLUE & SILVER
Engine: 5.7L & 5.0L
Transmission: 700R4
Axle/Gears: FACTORY
i have an 85 iroc-z ..... the guy i bought it off put a b&m shift kit on it, dont know if that helps.....
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Glowsock
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Jan 9, 2017 04:06 PM