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Wiring a 3 wire o2

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Old Jan 31, 2012 | 06:55 PM
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85Iroc-Z's Avatar
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From: NE Pennsylvania
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Wiring a 3 wire o2

I am trying to get my heated o2 sensor working. My problem is that it is wired into the wire for the fuel pump, but the fuse for the fuel pump always blows when I turn the key forward and can't figure out why. What else is a good place to wire it into? I havent found anywhere else yet.
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Old Jan 31, 2012 | 07:08 PM
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Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Wiring a 3 wire o2

What wires are connected where right now?
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Old Jan 31, 2012 | 07:14 PM
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85Iroc-Z's Avatar
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From: NE Pennsylvania
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Re: Wiring a 3 wire o2

The harness can only be connected one way. The 02 sensor wire has the connector on it to plug into the factory one. And the black wire is to ground and the pink wire is spliced into the fuel pump relay wire. However the fuse will always blow for the fuel pump, therefore the heater wont work for the o2.
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Old Jan 31, 2012 | 09:53 PM
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Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Wiring a 3 wire o2

What application did this sensor come from?
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Old Jan 31, 2012 | 10:27 PM
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85Iroc-Z's Avatar
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15 Year Member
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Joined: Mar 2007
Posts: 1,698
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From: NE Pennsylvania
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Re: Wiring a 3 wire o2

Its all brand new from tpi parts,
Sensor http://tpiparts.net/inc/sdetail/10956/15837
Harness http://tpiparts.net/inc/sdetail/2167
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