Hello all, I am new here, and I would kindly like to ask you all for some help. I will try to explain what we are working with, and what the problems are.
Car is a 2006 B7 RS4, Deflapped, GruppeM intake, Zinram downpipes (with 200cell). New Lambdas front and rear. Jackal tunning but on stock map for the moment.
The car is running very very very rich, and I cannot pass my CO2 tests for emmisions. CEL (MIL) is on. VCDS Scan comes back with B1S1 /B2S2 pump current /trim circuit open, or heating circuit open circuit, or signal shorted to heater circuit. I can post the most recent, but here is a snapshot of the full scan after clearing B1S1:
01826 - Sensor for Steering Angle (G85); Supply Voltage Terminal 30
01314 - Engine Control Module - 004 - No Signal/Communication - Intermittent
000080 - Oxygen (Lambda) Sensor B2 S1: Heating Circuit - P0050 - 004 - Malfunction / Open Circuit - MIL ON
008224 - Intake Manifold Flap Position Sensor (Bank 2) - 008224 - Intake Manifold Flap Position Sensor (Bank 2)
005634 - Power Supply Terminal 30 - P1602 - 002 - Voltage too Low - Intermittent
00779 - Outside Air Temp Sensor (G17)
010 - Open or Short to Plus - Intermittent
00562 - Sensor for Oil Level/Temperature (G266)
010 - Open or Short to Plus - Intermittent
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
00779 - Outside Air Temp Sensor (G17)
010 - Open or Short to Plus - Intermittent
00562 - Sensor for Oil Level/Temperature (G266)
010 - Open or Short to Plus - Intermittent
01314 - Engine Control Module
004 - No Signal/Communication - Intermittent
I have pinned out and tested continuity with the Lambdas and the ECU, no issues or problems in the wiring here that I can find. I have checked fuses in the ECM box and have not found anythign suspicious yet. I am starting to suspect I have an issue with the ground at the 11 ECM (second exposed ECU) or something at Terminal 30.
Any advice is appreciated.