quattro Digest, Vol 133, Issue 4

[Tihol Tiholov]

I'd ask on forums dot ross-tech dot com with full scan posted.
As Cody said - most likely power supply issue. I'd check the battery first
before diving deeper. BTDT - fixed with cleaning batt posts.

Tihol


...
> From: Cody Forbes <cody at 5000tq.com>
> To: mike <mikemk40 at yahoo.com>
> ...
>
> That really looks like a power supply issue. Too many different things.
> Best thing to do would be break out the multimeter and check power to
> various things that hate issues.
>
> -Cody Forbes (mobile)
>
> On Nov 9, 2014, at 12:10 PM, mike <mikemk40 at yahoo.com> wrote:
>
> > Gents,
> >
> > codes I have are,
> >
> > |  16514  |  P0130  |  O2 Sensor Circ.,Bank1-Sensor1 Malfunction  |
> > |  18010  |  P1602  |  Power Supply (B+) Terminal 30 Low Voltage  |
> > |  16955  |  P0571  |  Cruise/Brake Switch (A) Circ Malfunction  |
> > |  16486  |  P0102  |  Mass or Volume Air Flow Circ Low Input  |
> > |  18030  |  P1622  |  Engine coolant temperature signal
> range/performance  |
> > |  16490  |  P0106  |  Manifold Abs.Pressure or Bar.Pressure
> Range/Performance  |
> > |  16538  |  P0154  |  O2 Sensor Circ.,Bank2-Sensor1 No Activity
> Detected  |
> > |  17528  |  P1120  |  O2 Sensor Heater Circ.,Bank2-Sensor1 Open  |
> >
> >
> > second & third went and haven't returned after clearing, the others have
> come back.
> >
> > Does anyone know if there are any upstream fuses or other faults that
> could be giving false positives or am I safe in assuming that the actual
> sensors mentioned have failed?
> > Cheers
> >
> >      From: tom winter <tom at tomwintermedia.com>
> > To: quattro at audifans.com
> > Cc: mikemk40 at yahoo.com
> > Sent: Wednesday, 5 November 2014, 20:08
> > Subject: B5 S4 codes
> >
> > For the B5 platform, the forums at Audizine are pretty good. Do some
> > searches and if you can¹t find anything, then maybe post up some
> > questions: http://www.audizine.com/forum/forumdisplay.php/3-B5-S4-RS4
> >
> >
> > Tom 2001.5 S4 Avant
> >
> >
> >> From: mike [mailto:mikemk40 at yahoo.com]
> >> Sent: November 03, 2014 2:39 PM
> >> To: 'Quattro List'
> >> Subject: B5 S4 codes
> >>
> >> Long time no post but my old S4 has been retired at 230k miles and
> >> replaced with a "new" one, same age but *only* 100k miles.
> >> new one is doing 22 mpg (old one did 27) so codes were read.
> >>
> >> Seems there are lambda sensors not working plus maf isn't working but
> >> strangely, looking at blocks I have 50c inlet air temp which on a cold
> >> idling car in the UK is nonsense.
> >> Does anyone know where this temperature reading comes from? Is it MAF?
> >> Cheers
> >> Mike
> >>
> ...
>
>