18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17967 - Throttle Valve Control part (J338): Fault in basic settings
P1559 - 35-10 - - - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-00 - -
00522 - Engine Coolant Temperature Sensor (G62)
30-10 - Open or Short to B+ - Intermittent
00575 - Intake Manifold Pressure
17-10 - Control Difference - Intermittent

Please Help

1997 Audi A4 1800 no mods

1997 Audi A4 1800 no mods

18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent

Either you have an intermittent problem getting power to your ECU or you have disconnected the battery or removed the ECU recently.

17967 - Throttle Valve Control part (J338): Fault in basic settings
P1559 - 35-10 - - - Intermittent

Do this:

http://www.ross-tech.com/vag-com/cars/throttlebody.html

17978 - Engine Start Blocked by Immobilizer
P1570 - 35-00 - -

Check your Instrument Cluster for fault codes.

00522 - Engine Coolant Temperature Sensor (G62)
30-10 - Open or Short to B+ - Intermittent

Replace coolant temp sensor and/or check its wiring.

00575 - Intake Manifold Pressure
17-10 - Control Difference - Intermittent

Is your car non-turbo? Does it have a MAP sensor?

apart from the throttle valve issue

the rest of the errors are from my brothers 1998 tdi

thanks for your help Andy