well i dont know if this is coincidence or what, but yesterday i picked up my car from mitsu after they replaced the seal between my tranny and t-case and then i went home last night and replaced my walbro 255 with a new one including the filter because my old one was loud as hell, then all of sudden bam...SES. the code is P0134 o2 sensor; Circuit No Activity; Sensor 1 Bank 1. Now my question is, is this the front sensor or back sensor? Is this bad to drive for a little with this code? what effect will this have on performance? and what is the part number?

any help is greatly appreciated.

 

and as of right now the car is ideling like it did before the code, and i dont think performance has been changed. i will pull the plugs today. i am still running the stock injectors, buschur FMIC with upper piping, buschur cone filter, UR 3" TB with test pipe, Hallman MBC, walbro 255, and dynoflash. the thing that is weird is that i just changed out my walbro for a new one...could this possibly cause the problem.

 

good question, i get this code intermittantly. I , too, wonder if it is the front or back....

 

i did some research and this is the front o2 sensor, but everyone that has had this code has either damaged the sensor after installing a t-kit and or installing bigger injectors.

the voltage on the o2 sensor i noticed during operation would stay at 0.000 than jump to 0.020, 0.040, 0.080, and 0.100 intermintently.

ANYONE??????

 

Anyone? I would really appreciate the help, so if i need to i could order a new o2 sensor today, so I would need the part # if possible.

 

BUMP..sorry for being a pain in ***...i just need some advice. i called the dealership who just worked on my car for replacing the t-case seal and i am trying to pin it on them but we will see about that.

 

did you ever figure out the issue?