89 Audi 200 Turbo fuel problem

[Ice Cat ^. .^ ~]

Hi Eric !

Thanks for writing.   Yes it is a 5 cylinder turbo.

>Scott Mockry's (SJM) site has very
>good information:
>
>http://www.sjmautotechnik.com/

I will check that out.

>Look at the section called:
>
>Troubleshooting Tips, and
>Repair Information
>1986-88 5000TQ
>1989-91 Audi 100/200
>1992-95 Audi S4/S6
>
>Some of your problems sound like you have a leak in a hose that is
>part of your
>intake system or possibly a leaking vacuum hose.

Well at first that is exactly what it felt like.   We changed a few
hoses, but I bet we missed some.

>I would remove and closely
>inspect all of these hoses. You cannot always see the cracks without removing
>the hose. Two popular leaks are the intercooler to throttle body hose (AKA
>"Michelin Man hose") and the lower wastegate hose. Any of the hoses could be
>cracked. For example, I just replaced the main air boot on top of the air flow
>sensor this weekend on my 1989 200q Avant because it had cracks on the
>underside. Even the intercooler can leak at the end caps, so do not overlook
>that.

Thanks will check that out . . .

>Oh, the white smoke sounds bad. I usually associate white smoke with a leaking
>head gasket. You should do a compression test.

Well when I got home with the car a year ago and my husband had been
following me on the road and said he saw white smoke.  I looked that
up and was very concerned.

I took it to a mechanic and he said the car was fine.
"famous last words . . ."    :-(

It drove fine for the last year.

>Black smoke also sounds bad. If you have been producing black smoke
>for a while
>you could have damaged your catalytic converter. This would make your car run
>crappy. I doubt if a failed cat is your main problem, but it may be involved
>now.

Well now that makes sense as it has started to run worse and worse.

Worse yet I took it to someone to look at it last week and he kept
reeving the engine as high as it would go (cold, yet) which of course
didn't do it any good.   Needless to say, not going back there.

I have an appt. tomorrow morning with a place called The European Car
and they specialize in German cars.

>There are many possibilities. The compression test is important. Then I would
>systematically eliminate the intake and vacuum hoses as suspects. Remember,
>these hoses are likely old, so replacing them is not wasted money even if they
>are not the culprit right now.

Well, that is my philosophy.    Will check that out.  Thanks.

>It is not a question of if they will fail, it is
>a question of when. Fuel pumps are known to fail and the coating can
>come off of
>the tank and block the inlet to the fuel pump. Testing for fuel pressures per
>the information at SJM's site can help narrow down the list of potential
>culprits. A good shop should know how to track things down.

I will check that out.

>I believe you are in CT.   Dealership parts are usually overpriced. You may
>already have a trusted parts supplier,

Yes, and they are less than the dealership and have been very good,
but they are not as good as some places I recently checked on the
internet.

It is great to have people on the list recommend places they have
used otherwise I would be a little nervous ordering from them.

I will go to their sites and check them out.    Will look further at
the car this evening.       Thanks so much for all the info.   Will
take another look at the car this evening and maybe we can figure
something out before paying a ton for diagnostic work.   At least I
found someone who is willing to diagnose as many said they wanted to
fix it as well or forget coming in.    Yikes!

Fay


    "Friends help ya move . . . REAL friends help ya move bodies."