4 wire o2 sensor for d15b vtec

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spiritofjosh

know your role!
I just bought a d15b for my eg because of the price and more power then my dx d15b7 but i dont know a whole lot about these d-series yet, i didnt do the swap yet but i started wiring an si harness on the motor and i noticed it didnt come with an o2 sensor or vtec oil pressure switch (i knew it wouldnt but thats a different story). so am i going to have to do any wiring for the o2 sensor or can i just get a new one and what model engine do i get it for?
 

spiritofjosh

know your role!
yeah thats wired, the only plug left over near the dizzy is the green plug that connects to the pressure switch
 

AHHVTEC

Well-Known Member
VIP
see the reason i ask is some d15b only have vtec solenoids with no pressure switch is that the one you have
 

AHHVTEC

Well-Known Member
VIP
ok well if you have the d15b thats has both to use the p08 ecu you will need a 1 wire o2 sensor . to use a 4 wire you will need a p28 ecu
 

spiritofjosh

know your role!
yeah thats what i have a p28, virgin bc i got it pretty cheap. when getting the sensor what motor am i getting it for, since i'll be shopping for usdm
 

HATCHET_HONDA

scottie fizzle
i have a d15b in my 90 si hatch, bought one for a 95 si, had to replace my o2 to pass emissions which sucked ass lol..and a new oil press switch for that solenoid is like 50 bucks from honda. mine was broke off when i got my motor
 

spiritofjosh

know your role!
thats actually the only one i found so far, i think im going to order that but i didnt yet cuz i have to open up an entirely new ebay account because i had to close my last one.
 
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