davids_s4

First 6 faults, haven't scanned my car for a few months....all codes intermittent

17530 - Oxygen (Lambda) Sensor Heating; B2 S2: Open Circuit
17548 - Oxygen (Lambda) Sensor; B2 S2: Internal Resistance too High
16805 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold
16825 - EVAP Emission Control Sys: Incorrect Flow
16706 P0322 Ign./Distributor Eng.Speed Inp.Circ No Signal
16815 - Warm Up Catalyst: Bank 2: Efficiency Below Threshold

Recently put on Borla exhaust. Cleared the codes, drove home from work. Checked for faults, 4 showed up, only 17530 was intermittent.

16815 - Warm Up Catalyst: Bank 2: Efficiency Below Threshold
16805 - Warm Up Catalyst; Bank 1: Efficiency Below Threshold
17530 - Oxygen (Lambda) Sensor Heating; B2 S2: Open Circuit
17548 - Oxygen (Lambda) Sensor; B2 S2: Internal Resistance too High

I have piggie pipes and a borla cat back exhaust, i have anti-foulers on, but still getting the warm up catalyist bank 1 fault code. Whats going on with my car??

nyet

start by fixing your rear o2s, then work from there.

B5QShip

Get a fueling kit with software that ignores secondary O2s. +65hp & problem solved.

Cypher2k

2nd. my ECU passes the catalitic tests, while connected to 12v power, on a bench.

davids_s4

sounds so easy, need more funds, donations welcome