gilly615

So my car is throwing the following codes:

P0135
P0155

I know that they are for the heater cicuit for sensor 1 on bank 1 and 2 and was wondering if the MIL eliminators that are on the car can cause them. The car is a 2004 gt with a mac mid pipe.

BraMas

Your MILs should be on the 2nd set of O2's if your getting a code for Sensor 1 on bank 1 and 2 that means it is your first set of O2's that are throwing the codes

gilly615

The MIL eliminators are on the second set of sensors i'm just wondering because before I installed the eliminators iwas only throwing codes for the rear o2 sensors.

cliffyk

Have you checked the 20A fuse in position 8 of the central junction box (under the dash)?

The heaters for all four O2 sensors are powered by that fuse; the PCM turns the heaters on by switching the "ground" lead...

gilly615

I have't checked it yet. I have had the fuse blow a few time
due to a bad o2 sensor, which I've fixed and when that happened the car threw 7 codes all related to emmision components. I am leaning away from the fuse being blown.