# sr ?

**URL:** <https://forums.speedlife.net/t/sr/115721>\
**Category:** SON240sx Automotive\
**Created:** [May 22, 2008, 8:47pm UTC](https://forums.speedlife.net/t/sr/115721 "2008-05-22T20:47:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![nd4boost](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nd4boost/32/5627_2.png) [@nd4boost](https://forums.speedlife.net/u/nd4boost)\
**Post date:** [May 22, 2008, 8:47pm UTC](https://forums.speedlife.net/t/sr/115721/1 "2008-05-22T20:47:24Z")

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1 my s13 red top sr is running like crap i think i have a boost leak any easy ways to check?? i was told baby powder on the piping would work ??  
2 ive been searching for a smic stock piping diagram can find???  
3 i bought a new o2 sensor for a 87 300z t and i have to cut the connector because my harness has no connector. any one know for shure which is the signal wire and which is heater ect its a ntk 24002 has one red one white and one black my guess is white signal red 12vdc black ground???  
any help would be great thanks