bertrenolds

I have a 2.7t and I replaced the the down pipes with new ebay pipes with no cats basically piggy pipes and replaced all the o2 sensors with new sensors. I have spacers on both of the rear o2 sensors and I find it strange the drivers side rear is not throwing a code but the passenger rear is. I have read that it could be a wiring issue but I am not sure, Could a leaking in the slip joint after the sensor cause a code? I am posting the vcds codes below. I thought about putting a different spacer in, I got 2 different types with my ebay exhaust pipes. Any info would be very appreciated, I am wondering if maybe I need to tune the o2 errors out? Can I just tune the o2's and change the accepted values and not add hp.

VCDS-Lite Version: Release 1.2
Friday, 11 November 2016, 14:14:09:20458
Control Module Part Number: 4Z7 907 551 M
Component and/or Version: 2.7l V6/5VT G 0001
Software Coding: 06752
Work Shop Code: WSC 02325
VCID: 4DEDA5DD94C9
Additional Info: WA1YD64B12N149944 AUZ7Z0B2110460
2 Faults Found:
16522 - Oxygen (Lambda) Sensor B1 S2: Signal too High
P0138 - 35-00 - -
17522 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
P1114 - 35-10 - - - Intermittent

MrKid

You can get the rear O2s tuned out, as only the fronts are required for the engine to adjust fuel. The second O2s read the efficiency of your cats...which you don't have? Piggy pipes are usually only gutted pre-cats. if you have none, you may have to double up on the spacers to show less flow across the sensor.
Most places require at least a stage 1 tune to code out sensors.

bertrenolds

Thanks Mr.kid, I put and extension on the o2 that was throwing the code. Hopefully this solves the issue. I had no idea that piggy pipes kept the lower cats, I thought you gutted them completely