Poor running 3B
PeterBergin at aol.com
PeterBergin at aol.com
Wed Dec 1 06:48:36 PST 2010
Limped over to Anderson Motor Sports on Monday, Chris had a used MAP,
plugged it in and all is good again. (gave me a deal on it) Cleared the codes
with his reader. The codes I was getting were injector 3 (new) and to old
recurring codes O2 sensor and Idle stabilization valve have not reoccurred.
Never did see a MAP code however.
This has always been a great shop, one of the Owners has had a 91 Avant
forever.
Thanks all for the input, all is well in my Audi world (for the moment)
Pete 91 Avant 238k
In a message dated 11/22/2010 8:10:11 P.M. Central Standard Time,
group44_us at yahoo.com writes:
After reading this thread, Im thinking your right. If you unplug the MAF
and
nothing happens, its a really good clue. Thats what helped me determine
what my
issue was. I did get a MAF code though from vag com. Just to be sure, (and
if
youre bored) you can tone out the wires from the ecu to the maf to make
sure
they are happy and low resistance (under 1 ohm) as well as pin 1 on it
which
should be a good solid ground. Make sure the pins in the connector arent
green
too...but it sounds like youre on the right track.
----- Original Message ----
From: "PeterBergin at aol.com" <PeterBergin at aol.com>
To: walbum1 at verizon.net; 200q20v at audifans.com
Sent: Mon, November 22, 2010 4:41:22 PM
Subject: Re: Poor running 3B
I did loosen a line at the filter, gas squirted out. Just can't
understand why it would not be the MAF if the condition is the same when I
unplug
the harness from it.
Thanks, Pete
In a message dated 11/22/2010 3:37:18 P.M. Central Standard Time,
walbum1 at verizon.net writes:
Hi Pete,
I had a similar condition with a non-Audi, figured I'd pass the info
along.
I haven't followed the thread closely so maybe this was already covered.
Anyway the car was (still is) a Volvo with a Ford engine transplanted, so
everything is suspect. I found that I could idle up a hill (very light
throttle actually) that I could not drive up accelerating normally. The
culprit was the main fuel pump (there is also an in-tank pump). I
replaced
it with a known good used pump ($10), still going strong.
HTH,
Andy
'91 Avant 301K miles
'91 Volvo 745 5.0 V8
----- Original Message -----
From: <PeterBergin at aol.com>
To: <PeterBergin at aol.com>; <group44_us at yahoo.com>; <bradyzq at hotmail.com>;
<auditony at gmail.com>; <200q20v at audifans.com>
Sent: Monday, November 22, 2010 4:10 PM
Subject: Re: Poor running 3B
> Pulled the codes today, the old 2121 kept repeating itself (used to
have
> an intermittent light) cleared the old ones. All I get with the motor
> running is 4413 (fuel injector 3) continuous, repeated its self at
least
> 25
> times before I turned the key off.
>
> Did the manual engine off click and buzz test, everything fine, felt and
> herd 5 clicks on all injectors, any everything else clicked as normal.
>
> Car cold starts fine, once I give it gas it hesitates and misses, only
> takes gas if I apply the pedal very gently.
>
> Unplugging the MAF makes no difference in running, no worse, no
better.
> Should I be looking for a used MAF. If so any one have one.
>
> Looking for a way out of this with out going to the shop or replacing a
> bunch of stuff I don't need.
>
> Any Ideas?
>
> Thanks, Pete
> 91 Avant
>
>
>
> In a message dated 11/22/2010 6:23:46 A.M. Central Standard Time,
> PeterBergin at aol.com writes:
>
> Cap, rotor, wires, plugs and wires have about 40k on them. Look
good
> and
> dry. Started car yesterday no difference, am going to pull codes
today.
> Thanks, Pete
>
>
> In a message dated 11/21/2010 9:07:32 P.M. Central Standard Time,
> group44_us at yahoo.com writes:
>
>
> Its possible, but I wouldn't condemn it yet. You mentioned ice storm
and
> rainy... how old are your wires? how about the cap and rotor? Id pull
> that
> and dry them off first and see what that does. If they are new and
> decent
> then you might be looking at a maf. When my MAF went it was pretty
> smokey
> at
> idle and couldnt pull any boost at all. not even 1 psi
>
>
>
> ____________________________________
> From: "PeterBergin at aol.com" <PeterBergin at aol.com>
> To: group44_us at yahoo.com; bradyzq at hotmail.com; auditony at gmail.com
> Cc: 200q20v at audifans.com
> Sent: Sun, November 21, 2010 4:56:03 PM
> Subject: Re: Poor running 3B ---FIXED!---
>
> Think you jinxed me! Was driving home in the worst ice storm I have
> seen
> in Minneapolis. Car suddenly starting running like crap. Bucks,
wont
> usually idle unless I hold the peddle down a bit, must accelerate very
> slowly
> to make any speed. Bummer!
>
> Car ran perfect before, however had two intermentant codes. O2
sensor
> and
> ISV. Have had an O2 sensor on order, first one came in wrong part.
Did
> not pay much attention to the ISV because the car ran perfect (238k
> miles).
>
> Unplugged the MAF sensor, no difference in car running, pressured
turbo
> and vacuum system to 15 psi, no leeks, pulled and cleaned MAF, no
> difference.
>
> Started to rain again (have to work out side) so I quit for the day.
> Will
> clear and pull codes tomorrow.
>
> Think I am on the right path with the MAF?
>
> Thanks
> Pete 91 Avant (never breaks down during good weather)
>
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>
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