Pulling codes, 88 90

[Huw Powell]

> you need to first
> make sure its got a bulb in the check engine light hole in the dash (
> most 80's and 90's didnt )(does the check engine light come on when
> you turn the key on ?? )

if it is like my '89, I just tried this out for the first time a few
weeks ago.

Turn the key on (no need to run engine though).  insert a 10A fuse in
the fuel pump relay (in the fuse box) for a few seconds.  remove it.
jump back into the car and look at the check engine light.  It will
start flashing any codes (or 4-4-4-4 if there are none).

I think if you ignite a code while driving, you have to do this code
pulling sequence before turning the engine off.

> John Larson <j.d.larson at verizon.net> wrote:Anybody up on pulling
> codes on an 88 90? The book calls for an adapter I don't have, and
> I'm not clear how it works. TIA, John

--
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/