New to the forums. Hoping to gleen from the vast knowledge of fellow Audi afficienados! New to turbos & euros. Anyway, cel comes on, borrow a reader from my local auto parts & here's what I got:
P1473
P0445
P0037
P0418
P0412
P1289
P0136
P0102
P0031
P0135

I got a brief summary of some of the trouble codes. I know the ones with
P1xxx are a manufacture's code. Others include mass airflow sensor, & both O2 sensors. I also noticed the turbo not kicking in & it doesn't sound as if it's spooling up. I'm wondering if my turbo died & is causing a chain reaction of problems. The trouble codes are mainly air related. Any help is already appreciated & if it is the turbo, what's a good upgrade? Can't spend a lot, but fast is always good!

 

Clear all the codes and see which one's come back after a week or so of driving. Some may be old and already fixed. These turbo's are small and are mainly for efficiency in stock form. Depending on what year you have, you are only working with 150-170hp stock in a heavy car. Afer you see what if any fault codes return and diagnose/fix, consider chipping your car if you're looking for a "cheap" 50 horse power and lots more torque.

 

P1473 - EVAP Emission Contr.LDP Circ Open Circ.
P0445 - EVAP Purge Control Circuit Fault
P0037 - ?
P0418 - Sec. Air Inj. Sys. Relay (A) Contr. Circ Malfunction
P0412 - Sec.Air Inj.Sys.Switching Valve A Circ Malfunction
P1289 - Turbocharger bypass valve short to ground
P0136 - O2 Sensor Circ.,Bank1-Sensor2 Malfunction
P0102 - Mass or Volume Air Flow Circ Low Input
P0031 - ?
P0135 - O2 Sensor Heater Circ.,Bank1-Sensor1 Malfunction

 

looks like vacuum problem, SAP pump and 02 sensors. like onepoint8 said, clear the codes and see if any come back. you're probably looking for bad vacuum lines, bad check valves.

 

Don't want to sound stupid, but how do i clear the codes & what about the fact I can't hear my turbo spooling up?

 

Clear them the same way you got them read, just press the "clear" button afterwards. Small turbo boosting 5-10 psi is supposed to be quiet. But get the codes cleared and see if any come back before speculating too much.

 

Your car may also be in limp mode due to all those codes. In this case your turbo wouldn't spool and you'd get even less throttle response than usual.

 

I would start checking all of the fuses in the fuel box, because "short to ground" means blown fuse. Plus every part that threw a code all work off the same fuses that power up the ECU.

 

Thanks fellas! Will reset the codes & check the fuses & let you know what I find.

 

Haven't been on in a while. I said I'd let everyone know what I found out. Ended up being a ground fault - short circuit. Wiring harness had come loose & rubbed a hole thru the loom & insulation & was grounding a wire. Got it fixed for $80 & runs like a champ again! It was in limp mode & no codes since. Thanks for all the advice.