Poor running 3B

[Bernie Benz]

But running rich! Some one has  already suggested a fuel pressure  
regulator not relieving.


On Nov 12, 2010, at 5:42 AM, kneale at knitknacks.com wrote:

> I don't have my Bentley here, but I seem to recall Scott Mockry  
> having a
> MAF test.
>
> Since it starts/idles OK, maybe a fuel pump providing inadequate  
> pressure???
>
> Original Message:
> -----------------
> From: HJS group44_us at yahoo.com
> Date: Fri, 12 Nov 2010 04:37:14 -0800 (PST)
> To: b.benz at charter.net, 200q20v at audifans.com
> Subject: Re: Poor running 3B
>
>
> I will be pulling the ECU codes this weekend. I did check wiring  
> back to
> the
> ECU, and its all good, Ill check bently for charts on the sending  
> units. I
> dont
> recall one for the MAF though, so Im still not sure how to test that.
>
>
>
>
> ----- Original Message ----
> From: Bernie Benz <b.benz at charter.net>
> To: HJS <group44_us at yahoo.com>
> Cc: 200q20V mailing list <200q20v at audifans.com>
> Sent: Fri, November 12, 2010 12:43:45 AM
> Subject: Re: Poor running 3B
>
> I haven’t looked recently but Bentley may have some procedures.  
> They are
> thermistors, I think B may have temp / resistance charts. Do  
> continuity
> checks
> back to the ECU.
> Have you pulled the ECU’s fault codes?
>
>
>
> On Nov 11, 2010, at 6:49 PM, HJS wrote:
>
>> Thanks Bernie. Do you have any procedures on how to test these?
>>
>>
>>
>>
>>
>> ----- Original Message ----
>> From: Bernie Benz <b.benz at charter.net>
>> To: robert weinberg <centaurus3200 at yahoo.com>; HJS  
>> <group44_us at yahoo.com>
>> Cc: 200q20V mailing list <200q20v at audifans.com>
>> Sent: Thu, November 11, 2010 6:44:17 PM
>> Subject: Re: Poor running 3B
>>
>> If previously running good, starts easily, and no recent screwing  
>> with
> timing,
>> not likely a distributor issue.
>> Check engine temp and intake air temp sensors to ECU.
>>
>> On Nov 11, 2010, at 3:29 PM, robert weinberg wrote:
>>
>>
>>> distributor issues?
>>>
>>>
>>>
>>>
>>> ________________________________
>>> From: HJS <group44_us at yahoo.com>
>>> To: 200q20v at audifans.com
>>> Sent: Thu, November 11, 2010 3:21:48 PM
>>> Subject: Poor running 3B
>>>
>>> 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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>>> 200q20v
>>>
>>>
>>>
>>>
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>>
>>
>>
>
>
>
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