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'03 A4 1.8T - Engine Code Issues...

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Old Jan 17, 2011 | 07:27 PM
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TurboB6's Avatar
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Default '03 A4 1.8T - Engine Code Issues...

Hey guys,

Just purchased a car from an auction and I've got a few fault codes that came up.

As far as some history...bought the car from an auction. Turbo was completely shot. The turbines were snapped off the shaft and just rattling around inside the housing. Also changed out the cat...most of the ceramic inside was broken and was melted.

First:

P3081 - Engine temp too low. This one might be related to a previous code I had and cleared, a P0018 (low coolant temp. to solve this one, I purchased a new 2-pin sensor). My engine temp is reading normal on the dash.

P04566 - EVAP System leak. Haven't seen this one, and I've checked the codes a few times now. Might be a loose gas cap?

P1602 - Low voltage to P.S. 30. I've connected/disconnected the batter a few times since buying the car; but don't know what exactly that may throw off :/

P0420 - Catalyst Threshold Low. I've already changed the catalytic converter...I think the next step would be to change the downstream O2 sensor. The car was really putting out a lot of nasty smoke before I changed out the turbo and cat, so this thing is probably clogged up or something?

And the last issue isn't related to the engine, but with the ABS system. A steering angle sensor fault code.


Ugh...I'd like to get rid of these codes and be able to finally register my new (to me) car!


Hope you guys can help me out a bit....lemme know if you need more info!

Thanks!
 
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