Red top o2 sensor question help

[wings_s13]

Ok have a few questions about the red top sr20det o2sensor. Ok i have hear that the 1987 300zx o2sensor is the oem replacement for the redtop sr20det, is this right? also is it a direct fit or is there splicing that needs to be done?? also how many wires come from the o2sensor, 2 or 3?? The last thing is, is the conector for the o2 sensor where is it located? and where is it located on the 63 red top ecu. please help need this info asap. having issues thanks, for the help.

[Sileighty_85]

just buy the real OEM one
The Nismo Shop : West Covina Nissan : Nissan JDM SR20DET Oxygen Sensors

[FRoSt415]

were is the connector of the o2 sensor? Follow your o2 sensor about 6 inches. And do u mean what pin on the ECU goes to the o2 sensor? very confusing

[wings_s13]

yes sorry the pin for the ecu. and at this time the o2 sensor is not conected.. thats the problem. there is only one wire comming from the o2 sensor. The only reason i dont want to buy the real oem one is bc it is me daily and needs to be done asap lol. PICS or anything like that would be great!! thanks any thing helps

also how can u tell if u have a skinny or fat o2 sensor.

[wings_s13]

any one?? ^^^ help. please gods of zilvia help lol

[Sileighty_85]

All Red top SR's Use skinny's

You dont NEED the O2 to drive it although it will help with idle and little bit of gas mileage

look around the back of the head comming off around the Inj wire harness it will be a grayish oval plug with three wires

[wings_s13]

cool thank u will order that asap, looked for the wires and grey conector but will look again tomorrow is it a long wire? or is the o2 sensor the long one?? thanks for the help.

Also i know i dont NEED one to start the car but with the performance struf i have and i just spent 1400 buck fixing my head, and that im shooting 2 foot flames out the back kinda bad, also stalls at idle. i dont want to flod the cylinders, fal the spark plugs and burn valves lol

[Sileighty_85]

Originally Posted by wings_s13

cool thank u will order that asap, looked for the wires and grey conector but will look again tomorrow is it a long wire? or is the o2 sensor the long one?? thanks for the help.

it all depend on who wired up your harness but it should be fairly long since it has to go around the head

[wings_s13]

ok well fair enough, dont know who wired it, bought the car this way fixing others problems and mistakes... almost done it think thank god. soo if it is not long and what not do i need to splice and extend??

[Sileighty_85]

Originally Posted by wings_s13

ok well fair enough, dont know who wired it, bought the car this way fixing others problems and mistakes... almost done it think thank god. soo if it is not long and what not do i need to splice and extend??

I cant remember but theres a certian plug on the KA harness you can use thats the same plug. Cant remember though.

But any wire thats the same size or bigger will be fine to extend it with

[wings_s13]

cool will look and post/update findings tomorrow thanks for the help ill let u know what happens