Poor running 3B

[HJS]

Hi Brandon. How did you convert it to obd2?
Turbo spins smoothly, but I didnt check fpr. I will also do that this weekend, 
thank you.




----- Original Message ----
From: Brandon Rogers <brogers at terrix.com>
To: HJS <group44_us at yahoo.com>; PeterBergin at aol.com
Cc: 200q20v at audifans.com
Sent: Fri, November 12, 2010 11:36:45 AM
Subject: RE: Poor running 3B

Don't forget to pull the codes - I've converted my connectors to OBDII so I
can hook up my ProDiag.  On my Urq w/ 3B my 02 sensor light is wired as a
check engine light - if yours is too you can blink out he codes at least.

IMO visual checks of the vacuum/boost hoses are not enough - you need to
pressure test the system.

Have you pulled the turbo intake hose off and looked at/ felt the impeller -
spin smoothely?

Fuel pressure regulator? - is the vac line to it broken?

Brandon 
'84 ur-quattro 20Vt




-----Original Message-----
From: 200q20v-bounces at audifans.com [mailto:200q20v-bounces at audifans.com] On
Behalf Of HJS
Sent: Thursday, November 11, 2010 7:48 PM
To: PeterBergin at aol.com
Cc: 200q20v at audifans.com
Subject: Re: Poor running 3B


Thanks for the tips guys. I did look for any boost leaks and didnt find any,
but 
I gave it a 90% look, not a 100% look. I can look deeper into it this
weekend by 
physically taking off some of the hoses. The plugs and wires are new, I
forgot 
to mention that, sorry. as are the cap and rotor (correct 3B rotor).

Any good ways to test the MAF and the sending units mentioned? 






________________________________
From: "PeterBergin at aol.com" <PeterBergin at aol.com>
To: group44_us at yahoo.com; 200q20v at audifans.com
Sent: Thu, November 11, 2010 7:03:17 PM
Subject: Re: Poor running 3B

Did you check vacuum leaks, turbo hoses and bpv?
Pete

In a message dated 11/11/2010 5:30:14 P.M. Central Standard Time,  
group44_us at yahoo.com writes:
HI    Everyone. I have a 3B in my UrQ and it ran great for quite a while. 
Recently 

>its not running well at all. Car starts right up and idles, but VERY rich
and 
>a
>
>good amount of exhaust smoke at idle (from being so rich). Driving    along
its 

>just OK but as soon as I hit boost, its like turning off the    key. It
pops and 
>
>sputters and damn near dies until I let off the gas, then    it comes back 
>again.
>
>At idle, if I go WOT instantly, it acts similarly,    pops..sputters etc
until I 
>
>let off, then it goes back to idle.
>
>
>Things Ive tried: New ECU, no change. New MFTS, no change.    Checked,
double 
>checked and triple checked all my powers and grounds to    the ECU and they
are 

>good. Up next is MAF, but not sure how to check    it.
>
>Any other things Im missing? Thanks for any tips!
>
>
>        
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