Continuing Problems 88 5KSQ

[Ameer Antar]

They may be talking about the aluminum plug that sits on top of the
adjustment screw in the airflow meter housing. They need to drill a tiny
pilot hole and get a metal screw threaded into the plug. Once threaded with
enough bite, the plug can pulled out with pliers. Kind of tricky to do, just
avoid getting metal shavings into the intake. You can always take the filter
out and wipe out the air cleaner box just in case it happens.

The problem could be electrical just because the shift was so dramatic and
also you mentioned replacing a sensor. Having even touched the wires might
have made some wire open or close a circuit. You may want to do some
diagnostics and do some resistance checks on the various engine harness
plugs to the ECU while jiggling things a little. In the meantime, it's
important to set the mixture right for whatever the ECU is reading for now,
and then just keep an eye on it.

On Wed, Aug 6, 2008 at 3:00 PM, <quattro-request at audifans.com> wrote:

>
> Date: Wed, 06 Aug 2008 14:42:10 -0400
> From: b1biker at aol.com
> Subject: Continuing Problems 88 5KSQ
> To: quattro at audifans.com
> Message-ID: <8CAC60B452A8D89-1098-7CC at MBLK-M25.sysops.aol.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Fellow listers. driveability issues continue to plague me. A brief update
> on the current problem. About 10 days ago I installed a new power steering
> pump and multi-function temp sensor, when I returned the pump core to the
> parts store it ran fine; on my way home when I tried to accelerate it just
> fell on it's face and had to be shut off before it would run again. I
> checked the fuel pump, changed the air filter, and tried disconnecting the
> O2 sensor. With the sensor unplugged it ran marginally better mut not
> properly. I put the car into the shop on last Monday; ther found, and
> replaced?a defective?O2 sensor; now they tell me that it's running way lean
> and they're having trouble getting the allen screw loose so that they can
> adjust the mixture. they said that they suspected some sort of electrical
> problem due to the sudden on-set of the problem but everything seems to be
> working properly. They have checked for vacuum leaks and can't find any. Now
> they are going to adjust the mixture but are having problems getting the
> allen bolt loose so thaty can accomplish that task. This is a small
> independent shop that has a very good reputation, I've been very happy with
> their work in the past.
>
> I'm at a lose as to where to look. I don't understand how the mechanical
> adjustments to the MAF sould suddenly get out of whack. I've already spent
> more than the value of the car in repairs over the past 6 month; which
> really isn't a problem as I plan on driving it for quite some time. Any
> advice, hints, BTDT, solutions?will be greatly appreciated.
>
> Thanks in advance,
> Gary Meier
>
>
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>