Checking codes on 89 100Q

[Phil Payne]

> One note of clarification: all 89-91 models equipped with I-5 motors (except
> for NA 20V) are NG motors.  These models also have diagnostic connectors
> mounted below the drivers side dash.  If these are there, the diagnostic
> codes are initiated and also read there with a LED tester.  There is a
> specific note in the 1989 Model Change book that states that the wiring to
> the fuse in the fuel pump is not connected.  In my Mom's '89 100 Avant, the
> Check Engine Light was not even installed.

Yup.  Says that about my 1990 100 TW too.  Wrong, though - the pump connector is still
connected.

I have the "eyebrow" dash and you can get the correct insert for it to show the right symbol -
just pennies from Audi.

But the fuse and diode light trick in the fuel pump relay still works, even though I have the
diagnostic connectors.

-- 
  Phil Payne
  http://www.isham-research.com
  +44 7785 302 803