[Shop-talk] PO174 - PO176 OBD CODES

[Paul Parkanzky]

My experience (with TDI VWs) is that the MAF sensor cannot be brought back
from the dead.  That said, I would look at vacuum leaks first.  A quick
jiggle/tightening of all the fittings and clearing the code might fix it for
you.

-Paul

On Dec 7, 2007 10:07 AM, john niolon <jniolon at bham.rr.com> wrote:

> MY '03 Tahoe through a check engine light at me yesterday... reader shows
> po174 and po176 codes which are engine lean...both banks
>
> from my googling it seems that it 'might' be a dirty MAF sensor or vacuum
> leak
> or leaking hoses etc
> figured I'd start with the MAF sensor.
>
> what's the best thing to clean it with and procedure if more than just
> spraying it down good  ??  does it need to be removed from the MAF or
> cleaned
> in place...
>
> what ever happened to cleaning/setting your points with a matchbook cover
> and
> getting back on the road ??  I hate technology... oh and windows vista...
>
> john
>
>
>
>
> Congressmen who willfully take actions during wartime that damage morale,
> and undermine the military are saboteurs and should be arrested, exiled or
> hanged."
>                                                               --President
> Abraham Lincoln "
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