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hmmm...what's this green wire do?
Peaking around the engine bay the other night, and noticed this wire just hanging loose...any ideas as to what it should be connected to?
This is driver's side engine bay, back left corner. ![]() |
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Less brakes, more gas!
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Year and model of car?
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![]() ![]() '82 Euro SC 'Track Rat' 22/29 Hollows, 22/22 Tarrets, Full ERPB F/R, Rennline Tri Brace, Glass bumpers, Pro 2000's, 5 pts, blah blah blah '13 Cayenne GTS |
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Registered
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My '78 has a green wire like that but it's on the other side of the engine bay and controls the A/C clutch.
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Tell it like it is or don't tell it at all. |
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Caveman Hammer Mechanic
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That controls the Fetzer valve, you will need to prepare it with some 3 in 1 oil and gauze pads, you will need about 12quarts of Prestone though. It's all ball bearings these days.
eric
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1984 Carrera El Chupacabra 1974 Toyota FJ40 Turbo Diesel "Easy, easy, this car is just the right amount of chitty" "America is all about speed. Hot,nasty, bad ass speed." Eleanor Roosevelt, 1936 Last edited by ClickClickBoom; 04-13-2011 at 06:24 AM.. |
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Registered
Join Date: Sep 2005
Location: Northern Virginia
Posts: 1,794
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To the original poster, that's the oxygen sensor connector.
Brian
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'82 SC Targa '83 SC Cabriolet |
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+1 O2 sensor connector
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2021 Model Y 2005 Cayenne Turbo 2012 Panamera 4S 1980 911 SC 1999 996 Cab |
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Quote:
So, why would this be disconnected? Just bought the car and moved it in state, so I have until next Feb. to get it inspected to pass NC laws. I'm assuming the o2 sensor will be looked at. Probably should get this fixed now, that run around next year.
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- 1986 Porsche 911 - 2016 958.2 Cayenne S |
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Virginia Rocks!
Join Date: Oct 2003
Location: Just outside the beltway
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I would agree that it's an O2 sensor, and it should be under the black loop with the 10mm nut in the photo. BUT, for an 84 Carerra, shouldn't it be a 3 wire version for the Motonic?
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Rosewood 1983 911 SC Targa | Black 1990 944 S2 | White 1980 BMW R65 | Past: Crystal 1986 944 na Guards Red is for the Unoriginal
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RETIRED
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You really need an O2 sensor on a Motronic engine. They are a wear item and need to be replaced on occassion.
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1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
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If you do a search you will find a few threads on the O2 sensor connectors crumbling. There are various ways others have fixed this, since you can't but a replacement connector. It is a 3 wire sensor, the wires for the O2 sensor heater should be there somewhere.
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Ed 1973.5 T |
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I would say to bend down and see if the O2 sensor is actually in the catalytic converter. If so you should see a black wire coming off of it going up into the engine bay. Then just feel around back in the engine bay where the wire goes up. It maybe there and just be unplugged.
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Matt. 83 911SC 85.5 944 NA - Sold |
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Ruby911
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Keep in mind that it is not uncommon for people to disconnect the 02 sensor to slightly richen the mixture and bump HP (theoretically).
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1984 Carrera - SW Chip, Factory Short Shift Kit, Cat Bypass - SOLD 1968 Ossi Blue 912 Sunroof Coupe - SOLD 1971 911E - 2.7 Twin Plugged, PMOs - SOLD 1965 356C Outlaw RGruppe #577 |
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Recreational User
Join Date: Mar 2004
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+1. Way to go, Fletch!
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