So i just replaced my o2 sensors and i still have a p1155 code now i do have after market headers and the bank 2 sensor two could be loose maybe as i didnt have that much space but what else could be the issue
Moved from the General BMW Discussion sub-forum.
04M3 TiAg 69k slick-top 3 pedal
99M3 Cosmos 61k S50B32 euro 6Spd
88M3 AW 43k miles Project FS
WTB: 3.5" Eurosport/Conforti CAI
assuming this is a 01 330 as listed in your profile. you haven't told us anything about the vehicle so i'm kinda guessing here.
have anything other than p codes? they often aren't much help on a bmw.
you mention headers - which ones and do you have a tune or anything? what other work have you done recently? 1155 seems possibly related to heater circuit function if you believe the p code...which, i'd be dubious. it's complaining about the o2 heater - if i understand that code correctly....
that said - check wiring, make sure it isn't pinched any place. make sure connections are secure....
you could do basic circuit tests with a test light or substituted load - especially if you have a tool capable of controlling the circuit...
'95 325iS - auto to manual swap done!
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