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1,363 Posts
Discussion Starter · #1 ·
About a month ago my CEL came on. I disconnected the battery, the light went away. A few days later CEL is back. Then I knew it meant business. So I argued with myself and finally plunked down the dough for a vag-com.
I hook it up last nihgt and get this:
Address 01: Engine
Controller: 06A 906 032 CL
Component: 1.8l 5V 110kW TLG V004
Coding: 06500
Shop #: WSC 01283
4 Faults Found:
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-00 - -
17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
P1297 - 35-00 - -
16795 - Secondary Air Injection System: Incorrect Flow Detected
P0411 - 35-00 - -
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
Readiness: 0000 0000
I assume the power supply code is from me disconecting the battery.
If the 16795 weren't present, then i'd just say it were a bad DV that is leaking as well as sticking closed to cuase both a premature pressure drop as well as a pressure spike if it isn't opening properly. However, The source of vaccuum for the DV comes from the same place as the secondary air injection, so i don't think it's the DV's fault.
Everything on the car is stock. The DV doesn't "honk". Give me your conspiracy theory as to what the problem is. thanks

1,363 Posts
Discussion Starter · #2 ·
Re: 17965, 17705, 16795 (revensonjr)

Does the positive deviation mean there there was too much boost, ie: the DV did not open properly and boost was trapped between the throttle and the turbo? or is there some other interpretation?
I just finished checking all the hoses involved in the vaccuum system for the DV and scondary air injection systems including removing the tray from under the intake manifold for closer inspection. There are no obvious cracks or loose fitting hoses. I was actually surprised at how good all the hoses looked, mostly still supple rubber, no ozone or heat damage, still flexible.
So, help still needed.
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