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Discussion Starter #1
hey there,
i need to fit a universal o2 sensor to my car(TT) to replace the original one and am needing a diagram of what wires do what.
can someone please tell me where i can find out where to get a pic of a diagram?
thanks in advance

jamie...
 

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Getrag Gearhead
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here is a link for o2 sensor cross reference chart. Use ONLY the NTK or Denso sensor replacement only! Other sensors are junk and too slow/not very active.

http://home.att.net/~ngksparkplugs/wsb/NTK_OEM_Cross_Reference.pdf

pin1: heater ground
pin2: heater power
pin3: o2 sensor signal wire
pin4: o2 sensor ecm ground

wires used by the NTK universal sensor use two white wirres for ground (doesn't matter which one), a grey wire for o2 sensor ecm ground and black wire for o2 sensor signal

This should get you where you need to go.

Joe.
 

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Discussion Starter #3
thanks heaps mate,
ive got an NGK sensor. i was told by the EFI guy who i bought it from that NGK make them for most car companies.

should i use this one.
oh by the way, this is a jap spec supra. are they any different?
 

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Discussion Starter #4


http://home.att.net/~ngksparkplugs/wsb/NTK_OEM_Cross_Reference.pdf

pin1: heater ground
pin2: heater power
pin3: o2 sensor signal wire
pin4: o2 sensor ecm ground

[/B]

one more thing, which pin is is what colour wire on the harness? you see i dont have the original o2 sensor, ive done an n/a to a TT swap and the o2 sensor didnt come with the engine harness that i have. so im going to have to cut the plug off and hard wire this o2 sensor to the harness.
on that cross reference there is nothing about supra's lol.
 

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Getrag Gearhead
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NA 02 sensors use only one wire for the 49 state cars. The california emissions cars use a 4 wire heated o2 sensor. If you have done a NA to TT swap use the TT engine wiring harness only. Other wise you will need to be a wiring genius (hint) to figure this one out.

Joe.
 

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carchitect said:
here is a link for o2 sensor cross reference chart. Use ONLY the NTK or Denso sensor replacement only! Other sensors are junk and too slow/not very active.

......

Joe.
Joe - do you know any problems with Bosch sensors?
They make a direct replacement.
 

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Discussion Starter #8
that NGK sensor actually had NTK written on the slip too.
so i guess i got the right one;)
thanks for your help.
she is in now and running fine:D
jamie...
 
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