Check engine Codes:need help
kurkovn2005
10-03-2009, 11:21 PM
I have a 2002 audi a4 and I need to get the check engine light off, I have these codes can someone help me to find out what in the world I need to change or do I just guess. It is
P0420: BBCatalyst system efficiency below threshold bank 1
P0171: BBSystem too lean-bank 1
then there is other ones like a faulty cylinder
If anyone knows what to fix for this specific car please let me know, it will be helpful.
P0420: BBCatalyst system efficiency below threshold bank 1
P0171: BBSystem too lean-bank 1
then there is other ones like a faulty cylinder
If anyone knows what to fix for this specific car please let me know, it will be helpful.
vectortech
10-19-2009, 10:49 PM
P0171 is almost always a vacuum leak in the intake- or possibly a messed up o2 sensor. These both need tested.
The other one is pretty well cut and dried that you need a new cat. converter. Not too many ways to get around this one.
Please post all of them- also let us know how it is running.
The other one is pretty well cut and dried that you need a new cat. converter. Not too many ways to get around this one.
Please post all of them- also let us know how it is running.
kurkovn2005
01-21-2010, 09:14 PM
Thanks man,
It was for my freind. Ya he got rid of it cause it had too many problems with the electronics. But still thank you.
It was for my freind. Ya he got rid of it cause it had too many problems with the electronics. But still thank you.
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