Danne77

Is it ok to erase these intermittent error codes and see if they happens again or do I need to take further actions before...? Thanks for any help!!!

Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,17,25,35,45,55,56

Address 01 -------------------------------------------------------
Controller: 8D0 907 557 C
Component: 1,8L R4/5V MOTR HS D08
Coding: 04001
Shop #: WSC 00000
6 Faults Found:
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
00561 - Mixture Adaptation
15-10 - Adaptation Limit (Add) Not Reached - Intermittent
16705 - Engine Speed Sensor (G28): Implausible Signal
P0321 - 35-10 - - - Intermittent
17733 - Knock-Control: Cylinder 1: Regulation Limit Exceeded
P1325 - 35-10 - - - Intermittent
17734 - Knock-Control: Cylinder 2: Regulation Limit Exceeded
P1326 - 35-10 - - - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - - Intermittent
Readiness: N/A

Address 25 -------------------------------------------------------
Controller: 4A0 953 234
Component: IMMO AUZ9Z0T4774091 D77
Coding: 00000
Shop #: WSC 40850
1 Fault Found:
01176 - Key
07-10 - Signal to Low - Intermittent

Uwe@Ross-Tech.com

The one you need to worry about the most is:

16705 - Engine Speed Sensor (G28): Implausible Signal

That's the most important sensor on your engine. Without it, the engine will not run. You might want to check/clean the connections at that sensor.

-Uwe-