Re: Check Engine Light

[Andrew Duane USG/PE <duane@zk3.dec.com>]

Hairy green toads from Mars made TC Hazzard say:

> Hi: I have a 1993 Audi Quattro Wagon with 80,000 miles. The check engine
> light has started coming on intermittently. This typically happens after
> about 45 minutes to one hour of operation. The car also diesels when cold,
> something it never used to do prior the light coming on. My understanding
> is that this light indicates a problem with the emission controls. Is
> there a particular aspect of the emission control system I should focus
> on? One person I spoke with stated that I may just have a loose hose
> although I can not find such a thing. Thanks.

You need to pull the codes. I think the 1993s need the special
jumper in the fusebox instead of the fuse in the fuel pump relay.
Look in the engine compartment fuse/relay box. If there are a
pair of connectors (one black, one white) in the center front
corner, you need the jumper.

The code will tell you *exactly* why the light is on.

-- 

Andrew L. Duane (JOT-7)			duane@zk3.dec.com
Compaq Computer Corporation		(603)-884-1294
110 Spit Brook Road
M/S ZKO3-3/U14
Nashua, NH    03062-2698

Only my cat shares my opinions, and she's too psychotic to express it