1993 O2 sensor replacement - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 06-04-2003, 03:47 PM   #1
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Default 1993 O2 sensor replacement

There was a post on here about the part #'* and the 2 different types. Cant find it... help
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Old 06-04-2003, 10:33 PM   #2
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I have the one with 2 wires. Do all of them have 2 wires or...?
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Old 06-04-2003, 10:45 PM   #3
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Default Re: 1993 O2 sensor replacement

Quote:
Originally Posted by Kuhl
There was a post on here about the part #'* and the 2 different types. Cant find it... help
Oxygen Sensor Application Guide:

P87H 3.8 GM P/N: 25162693 AC P/N: AFS20 POSN 1
P88H 3.8C GM P/N: 25162693 AC P/N: AFS20 POSN 1
P88H 3.8-3 GM P/N: 25162693 AC P/N: AFS20 POSN 1
P89H 3.8C GM P/N: 25162693 AC P/N: AFS20 POSN 1
P90H 3.8C GM P/N: 25162693 AC P/N: AFS20 POSN 1
P91H 3.8C GM P/N: 25162693 AC P/N: AFS20 POSN 1
P92H 3.8L GM P/N: 25162693 AC P/N: AFS20 POSN 1
P92H 3.8-1 GM P/N: 25162693 AC P/N: AFS20 POSN 1
P93H 3.8L GM P/N: 25162693 AC P/N: AFS20 POSN 1
P93H 3.8-1 GM P/N: 25162693 AC P/N: AFS20 POSN 1
P94H 3.8 GM P/N: 25312184 AC P/N: AFS75 POSN 1
P95H 3.8K GM P/N: 25312184 AC P/N: AFS75 POSN 1
P95H 3.8-1 GM P/N: 25312184 AC P/N: AFS75 POSN 1
P96H 3.8 GM P/N: 25312184 AC P/N: AFS75 POSN 1
P97H 3.8K GM P/N: 25312203 AC P/N: AFS109 POSN 1
P97H 3.8K GM P/N: 25312196 AC P/N: AFS97 POSN 3
P97H 3.8-1 GM P/N: 25312196 AC P/N: AFS97 POSN 3
P98H 3.8K GM P/N: 25312203 AC P/N: AFS109 POSN 1
P98H 3.8K GM P/N: 25312207 AC P/N: AFS116 POSN 3
P98H 3.8-1 GM P/N: 25312203 AC P/N: AFS109 POSN 1
P98H 3.8-1 GM P/N: 25312207 AC P/N: AFS116 POSN 3
P99H 3.8K GM P/N: 25312203 AC P/N: AFS109 POSN 1
P99H 3.8K GM P/N: 25312207 AC P/N: AFS116 POSN 3
P99H 3.8-1 GM P/N: 25312203 AC P/N: AFS109 POSN 1
P99H 3.8-1 GM P/N: 25312207 AC P/N: AFS116 POSN 3
P00H 3.8K GM P/N: 25312203 AC P/N: AFS109 POSN 1
P00H 3.8K GM P/N: 25312207 AC P/N: AFS116 POSN 3
P00H 3.8-1 GM P/N: 25312203 AC P/N: AFS109 POSN 1
P00H 3.8-1 GM P/N: 25312207 AC P/N: AFS116 POSN 3
P01H 3.8K GM P/N: 25312203 AC P/N: AFS109 POSN 1
P01H 3.8K GM P/N: 25312207 AC P/N: AFS116 POSN 3
P01H 3.8-1 GM P/N: 25312203 AC P/N: AFS109 POSN 1
P01H 3.8-1 GM P/N: 25312207 AC P/N: AFS116 POSN 3
P02H 3.8K GM P/N: 25312203 AC P/N: AFS109 POSN 1
P02H 3.8K GM P/N: 25312207 AC P/N: AFS116 POSN 3
P02H 3.8-1 GM P/N: 25312203 AC P/N: AFS109 POSN 1
P02H 3.8-1 GM P/N: 25312207 AC P/N: AFS116 POSN 3
P03H 3.8K GM P/N: 25312203 AC P/N: AFS109 POSN 1
P03H 3.8K GM P/N: 25312207 AC P/N: AFS116 POSN 3
P03H 3.8-1 GM P/N: 25312203 AC P/N: AFS109 POSN 1
P03H 3.8-1 GM P/N: 25312207 AC P/N: AFS116 POSN 3
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Old 06-05-2003, 03:27 PM   #4
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HO2S.

I had some crosseyed *** wipe at Autozone tell me all O2 sensors have 2 wires, a receiving and a sending. So I am like okay... I'm going to order it off the net.
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Old 06-05-2003, 05:45 PM   #5
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Mine is 4 wires...
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Old 06-05-2003, 06:03 PM   #6
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Ah its in the Techinfo, completely forgot. Thanks anyhow.

How do I disconnect the wires and reconnect em?
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Old 06-05-2003, 06:32 PM   #7
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Doh, they just plug in.

Also mine doesnt have two wires it has 3. Is this still the Heated one?
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Old 06-06-2003, 01:21 AM   #8
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I ordered one from O'Reillys today. 53$ isnt to bad considering I dont have to wait for weeks. I had him check in his system to see if the ac delco part # brought up any results. His inventory screen didnt even give the option of having one, but with the part number he found one half a state away so I'll will have it in 2 days.

I sure hoping this makes my car get better gas mileage, right now its really shitty mpg and I am betting that with all the 127k on it it still has the original.
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Old 06-06-2003, 04:55 AM   #9
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i was getting some really bad gas mileage with my 96...turned out the EGR needed to be cleaned and another emmisions thing (name escapes me at the moment) purged. Gas mileage immediatly back to normal!
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Old 06-06-2003, 02:21 PM   #10
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Have any instructions how to clean em? I think you mean the charcoal purge canister
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