95 civic o2 sensor problem HELP
hi! im new to this forum but i think i need some other opinions on this now.
my car has been running rich ever since i got it, it stinks really bad and i get horrible gas mileage, like 18 ive estimated. now i blew the engine and rebuilt and replaced it and i had this problem on both engines, so not the engine, i bought an o2 sensor FOR my car, the 4 wire one and put it in, i have put in new plugs and wires, installed a fuel air ratio guage correctly that allways reads rich except on deceleration which it leans out a little but if i kick it out of gear or touch the gas it goes all the way rich.
now this is where it gets weird, i disconnect my o2 sensor and theres no check engine light, and it runs the exact same, i tried to check codes but it gives me a vtec pressure switch code, like 22. i had been having problems with vtec also but ill worry about that later
its KILLING me on gas and it allways has since i got it, i think its a wiring problem? but its like the o2 sensor shouldnt exist, i disconnect it and it dosent throw a light or tell me something is wrong...
is there an alternative to the o2 sensor like a fuel pressure regulator? and if i did go that route would i run too lean in vtec?
its a 95 ex civic coupe d16z6 with intake, headers, and straight pipes... and i know straight pipes arent helping, but i know it will stink a bit but its horrible im embarrased to drive it
Last edited by Rawr51x; 10-19-2008 at 06:23 PM.
Reason: car info