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Join Date: Mar 2005
Location: Ogden, UT
Posts: 510
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O2 sensor
i got a universal bosch o2 sensor a while back, looked closely yesterday and saw i have a 3 wire o2 sensor, the one i have is the single wired one
where can i get a 3 wire o2 for fairly cheap? local store has a universal 3 wire for $73.99 and pelican lists it at $130ish i need one fast.. putting my 944 together is turning out to be quite the PITA
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1984 Porsche 944 - down for the count, may be rebuilt 1999 Civic ex coupe - Turbocharged fun/Daily Driver |
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03-14-2006, 01:25 PM
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Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
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there is a generic bosch 02 sensor........ that you can get..... 3 wire....
Approximately 30 bucks... The part number is on this site.............. somewhere............ 
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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03-14-2006, 01:33 PM
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Location: Los Angeles, CA
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Check clark's garage then search the part number on google. I got mine from Kragens for about $30-40
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'86 951 blk/blk -968 M030 Sway Bars with delrin bushings -IceShark headlight kit -Koni Yellow Sport Adjustable struts and shocks -225 lb springs up front Cleaned grounds = happy 944 WTB: 951 black passenger door/fender |
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03-14-2006, 03:06 PM
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Join Date: Jan 2006
Location: Connecticut
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Just picked one up from some seller on ebay for $30 shipped.
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03-15-2006, 01:22 PM
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ok so i went to get bosch o2 sensor #13913, it comes with a connector piece, the guy who worked there was hassling me about buying it saying how it might not work, etc. etc. if i do get this (should i?) do i cut the connector off and splice the wires to the factory wires??
the o2 i was looking at, has 3 wires, 2 white and one black. how do i know which wire on the o2 crimps to the factory wire? is this the suggested replacement route? the o2 was only $30ish so if this will work out ill head down and get it.
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1984 Porsche 944 - down for the count, may be rebuilt 1999 Civic ex coupe - Turbocharged fun/Daily Driver |
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03-15-2006, 03:48 PM
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Location: Ontario, Canada
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green goes to black, i believe.
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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03-15-2006, 04:03 PM
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what about the other two?
is there some sort of walkthrough of doing this? or does anyone have instructions or something?
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1984 Porsche 944 - down for the count, may be rebuilt 1999 Civic ex coupe - Turbocharged fun/Daily Driver |
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03-15-2006, 05:50 PM
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if you didn't already know, the only difference between the 3 wire and the 1 wire sensor is that the 3 wire comes with a built in heater, immediately bringing the sensor up to operating temperature instead of needing to wait for the exhaust to heat it up.
the black/green wire carries the signal of the sensor, the other two supply heat to the sensor and go to a powersource coming out of your DME (i believe). what is on the car currently?
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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03-15-2006, 07:19 PM
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the 3 wire is on the car currently which is strange.. i thought i had a 1 wire this whole time
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1984 Porsche 944 - down for the count, may be rebuilt 1999 Civic ex coupe - Turbocharged fun/Daily Driver |
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03-15-2006, 07:41 PM
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ok so you've got it all sorted out then? or are you still having problems trying to figure out what wire goes where?
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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03-15-2006, 07:44 PM
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ok let me see
the black wire is for the actual o2 reading, the two white wires are only to heat it up, so it doesnt matter where the two white ones go. black goes to the black one, white ones go to either of the other white ones, the o2 from the store (13913) will work then if i just splice it then right? just making sure, it seems like every part i have im having trouble with. right?
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1984 Porsche 944 - down for the count, may be rebuilt 1999 Civic ex coupe - Turbocharged fun/Daily Driver |
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03-15-2006, 07:55 PM
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no worries.. that's what forums are for!
I haven't done this myself so please wait until you get confirmation before you do anything... but it's my understanding that you are correct.....
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Kyle 2008 Mini Cooper // '83 Porsche 944 // '01 Mazda Protege [sold] // "Never break more than you fix!" - SoCal Driver |
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03-15-2006, 08:07 PM
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ya i wont get a chance to do much until tomorrow anyways, thanks for the help. im so grateful for this forum, i really dont know where i would be without you guys... youve been a great help Eldorado
so for further confirmation then, yay or nay with eldorado?
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1984 Porsche 944 - down for the count, may be rebuilt 1999 Civic ex coupe - Turbocharged fun/Daily Driver |
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03-15-2006, 08:21 PM
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bump
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1984 Porsche 944 - down for the count, may be rebuilt 1999 Civic ex coupe - Turbocharged fun/Daily Driver |
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03-16-2006, 08:52 AM
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Back from Beyond
Join Date: Nov 2004
Location: Alberta, Canada
Posts: 2,697
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I think Eldorado's right. In fact, if you live in cooler climes it's better to not have the sensor heater working. I've found my car gets grumpy when the O2 sensor heats up before the engine is warm enough to be leaned out.
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'88 944 Auto - project, kinda '87 944 Auto - died saving my wife '84 944 5SP - crushed under shop roof during snow storm All others GONE! |
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03-16-2006, 09:39 AM
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Location: Ontario, Canada
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Been looking at all the auto parts places in the US and Canada. Can't get one for under $80 except for Ebay. Don't want to spend much just to try. Mine is working but bad mileage so I'm going to try obne and see. There are two 3-wire on ebay at the moment. Bosch and Warner. Both for under $30 Can. including shipping.
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03-20-2006, 09:02 AM
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