I love this game.

Driving to class, everythings fine. Go to pass car, notice CEL. Failsauce. Cars running fine, and will scan before heading home. Ideas?

 

dunno.

had a remarkably similar thing happen to me today as well. Driving along minding my own business. Look down and notice the CEL on. No other apparent problems. Going out in a few minutes to do a scan.

have had the old three beeps on start, intermittently, for quite a while now with no indication of the problem. have had the CEL on before but usually it clears itself with a cold start. no major codes.

i know my O2s are going. i'll let you know what I come up with

 

were you WOT when it came on?

 

That's nowhere near enough information to diagnose. Scan it.

 

Chassis Type: 4B - Audi A6 C5
Scan: 01 02 03 06 08 15 16 17 18 34 35 36 37 45 55 56 57 65 67 75
76 77

VIN: WAULD64BXXXXXXXXX
-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 4B0 907 551 AL
Component: 2.7l V6/5VT G 0001
Coding: 06752
Shop #: WSC 02325
VCID: 6EDD39A200E5
WAULD64BXXXXXXX AUZ7Z0A2033705

3 Faults Found:
16523 - Oxygen (Lambda) Sensor B1 S2: Response too Slow
P0139 - 35-10 - - - Intermittent
16543 - Oxygen (Lambda) Sensor B2 S2: Response too Slow
P0159 - 35-10 - - - Intermittent
17887 - Brake Boost Vacuum System: Mechanical Failure
P1479 - 35-10 - - - Intermittent
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01V-927-156.lbl
Part No: 4B0 927 156 DR
Component: AG5 01V 2.7l5VT USA 1819
Coding: 01002
Shop #: WSC 02325
VCID: 7AF505F24CAD

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 4B0-614-517.lbl
Part No: 4B0 614 517 H
Component: ABS/ESP allrad 1728
Coding: 06397
Shop #: WSC 00000
VCID: 264D0182E895

1 Fault Found:
01119 - Gear Recognition Signal
35-10 - - - Intermittent

There is my log from the scan I just ran. Doesn't appear to be anything too serious. O2s and possibly the ABS module going. Cleared everything. I'll see what comes back.

 

P0411
SAI incorrect flow

P0102
MAF circut below imput

I swear I had these like a month ago

 

Cleared mine earlier. Went out to dinner next town over. About 30 minutes on the highway each way. No CEL, and the car seems to be running just fine.

Like you said in your first post, "I love this game"

I keep feeling/fearing that one of these days its going to be something serious.

 

There was a pinhole in my plastic pipe from the SAI, so I wrapped the whole thing in electrical tape, and pulled the battery. No codes yet, so lets see.

 

You have a B5, the CEL just means you turned the car on...at least that's what MINE means

 

People always ask whats wrong with my car, and I just shake my head and grin