How should I proced to resolve those two problems without seeing a garage. I can diagnostic the car myself. What is Bank 1? and how should I resolve the 30 Low Voltage issue?Car : AUDI A4 1,8TQuattro 1998. AEBIf I can have a pointform for diagnostic that will be perfect. Thank you
If you cannot work out where is bank one you stand little chance Of a correct diagnosis.
Change the front O2 sensor, the voltage issue is beyond your scope of expertise. Take the car to an auto electrician and not a auto mechanic to fix that problem. Good luck!!
it seems as if you may have a power supply problem to your ecu(low voltage term 30) check voltage at terminal 3 at ecu(1mm red wire) should be battery voltage bank 1 is your lambda probe, could be unmetered air in induction system
