[V8] SMOG MIL Problem w 90 V8 Quattro

Bob Herguth rherguth at sbcglobal.net
Mon Mar 8 00:53:53 EST 2004


Hi,

I'm new to the list and have Ford EFI experience, but no Audi experience.
My neighbor's 1990 Audi V8 Quattro failed a CA Smog check simply because the
MIL (Check Engine Light) didn't flash during the appropriate part of the
test.  It appears from reading the archives that pre-March 1990 cars and
Federal, Non-CA cars didn't have a light installed.  He doesn't think it was
originally a CA car, so this may be the cause of the problem, however, he
just paid a shop to install a lamp and it still failed the lamp test.  I
haven't tried flashing out the codes yet as I intend to build a VAG 1115
tomorrow.

I also read in the archives that older cars had a place on the FP relay to
cause the ouput of codes through the use of a fuse as a jumper.  This sounds
very odd to me, but OK.

1. Where is this relay on a '90 so I can give it a look?

2. Besides this relay possibility, are there any other reasons y'all can
think of why the MIL wouldn't flash?

	-- Bob
	1986 Mustang LX 5.8l
	1992 Mustang LX 5.0l
	1994 Taurus SHO ATX
	1989 Taurus SHO MTX (Soon!)
	1999 Durango 4x4



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