Stalling 90

[Huw Powell]

> I have a 1990 Audi 90 that I bought in California and drove back to MD.  After buying a 99 A4, I'm giving the 90 to my dad for a daily driver.
> 
> Problem is, after letting it sit for a while, something seems to have gone wrong and I'm going broke trying to fix it.
> 
> Here's the list:
> 
> a) stalls out randomly.  It'll stall right after you start it, pull away from the driveway, and stop at the stop sign.  It stalls when you turn right.  Then it won't do it again.  Then it will.  It;s really strange and it never did this before.

Clean the ISV and check all the "vacuum" hoses for leaks, see how that
goes.

>  plugs, wires, cap and rotor.  Replaced all those for $150 in an hour.  runs better, but still stalls.
> 
> I have it at tri-tec to have the cat and O2 sensor replaced.  You don't even want to know what they wanted for that.  I was thinking the O2 sensor might be bad since the cat is.

is the cat clogged?  better do something about that soon.

Also check your idle switch, on the bottom of the throttle body, shares
a connector with the WOT switch.  Is a '90 a 20v?  If so, it may be a
bit different.

> c) my antilock light is on, meaning the antilock is off.  I have no idea what's going on here.

someone probably unplugged the fuse (its in the end of the relay)
because the ABS was screwed up.  Typical... you can replace the fuse (if
that was the problem, 10A) and see what the ABS does... or leave it out
and remove the bulb, and perhaps the switch as well to reduce confusion.

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/