[s-cars] Codes

Sat Jul 29 15:30:17 EDT 2006

At this point, I'm going to check some sensors. I know I have a CPS that has 
a splitting connector, that I have to fix. I also will be replacing my fuel 
pump. Original unit has 180K plus on it. The other sensor on my list is the 
TPS. I have to see if there may be a open along the circuit.
Regards,
Ernest

>From: "Douglas Fifield" <douglas.fifield at gmail.com>
>To: "Ernest Seow" <ezveedub at hotmail.com>
>CC: bob at chips-ur-s.com, s-car-list at audifans.com
>Subject: Re: [s-cars] Codes
>Date: Sat, 29 Jul 2006 11:35:42 -0500
>
>Guys,
>
>I am interested in what you find.  As you may know, I am experiencing
>similar symptoms on my 95.5 S6 Avant.  It runs well under boost, but
>bogs and loses power intermittently at light throttle running.
>Sometimes sitting at a light, it will be idling fine, and then it
>feels like it drops a cylinder.  Attempts at isolating a cylinder by
>pulling injector connections has been unsuccessful.
>
>D.
>
>On 7/25/06, Ernest Seow <ezveedub at hotmail.com> wrote:
>>Also, to test the induction system, you must block off all breather hose
>>attaches to the inlet tract. I know on 1.8T, if you don't, you will have 
>>oil
>>pushed into the combustion chambers, and it smokes for a long time. I test
>>the systems right at the turbo inlet, not from the inlet hose. The hose is
>>not supposed to see positive pressure, unless you have a good aftermarket
>>inlet hose. The VAG tester is from the G-60 Corrado. It uses a 2 gauges on 
>>a
>>leakdown gauge setup. You set the inlet pressure, then open the line to
>>pressure the system. You also have to set the engine at a certain timing
>>mark, depending on your cams. VW Corrados were 3 teeth retarded from TDC 
>>to
>>get complete valve closing.  I will dig one of these units up and test my
>>system sometime this week.
>>
>>
>> >From: Robert Myers <bob at chips-ur-s.com>
>> >To: "Ernest Seow" <ezveedub at hotmail.com>, s-car-list at audifans.com
>> >Subject: Re:  Codes Date: Mon, 24 Jul 2006 23:16:12 -0400
>> >
>> >
>> >Ernest,
>> >
>> >This particular ECU has a Bosch 3 bar transducer but, IME, there is no
>> >problem with the VMAP.  Either is fine.
>> >
>> >Except for one time the engine hasn't stopped.  If I get on the 
>>accelerator
>> >a bit too much it just stumbles and feels like it isn't taking fuel.  If 
>>I
>> >let off the loud pedal a bit it comes right back and runs quite 
>>acceptably
>> >for cruising the highway at somewhat above legal speeds.  There has been 
>>no
>> >"hitting the wall" type feeling.  It just sort of bogs down and doesn't
>> >want to go anywhere and the speed falls off until I ease off the loud
>> >pedal.  This car was new to me about a year ago.  It contains an OXS of
>> >unknown age.  I have replaced the fuel pump and plugs.  OXS is next as 
>>soon
>> >as the connector harness (on order) arrives.  Fuel filter is also of
>> >undetermined age.  A new one is on order.  A can of Techron has been run
>> >through the injectors.  The induction system has been pressure tested 
>>and
>> >no leaks were found.  I have installed several different flavors of RS2
>> >software into the ECU to see if any of those variations make a 
>>difference.
>> >None found.  I have swapped a different ECU (containing a VMAP) into the
>> >car.  No effect.  I'm fairly well convinced it is not a software 
>>problem.
>> >
>> >Tomorrow I plan on checking the throttle switch for proper operation.  I
>> >may swap out the WGFV to see if the spare I have makes any difference.  
>>I
>> >may also swap out the BPV.  I will put the OEM coil-pack back into the 
>>car
>> >to isolate any effect from the 1.8t coil conversion which I did a while
>> >back.
>> >
>> >You can build your own pressure tester gadget.  Obtain about 4 inches of 
>>3
>> >inch PVC pipe.  You may need to use thin-wall stuff to get that 
>>diameter.
>> >Fit a tire valve in a cap for that pipe and glue the cap onto the pipe.
>> >Disconnect the hose from the MAF, insert the pressurizer gadget into the
>> >hose and clamp it tightly.  You can now pressurize the entire system 
>>using
>> >shop air.
>> >
>> >At 10:43 PM 7/24/2006, Ernest Seow wrote:
>> >>*This message was transferred with a trial version of CommuniGate(tm) 
>>Pro*
>> >>Well its seems we are in the same boat. What MAP sensor are you 
>>running??
>> >>VMAP right? I also need to pressure test my system. I need to borrow 
>>one
>> >>of the VAG pressure testers and turn it up to about 1.5 bar and see 
>>what
>> >>leaks if there are any. It feels like the vehicle goes into overboost 
>>and
>> >>cuts. Its like hitting a wall. I really hate it! I am starting to 
>>wonder
>> >>if the N75 is acting up. I want to try another Mass Air flow, but only
>> >>have a new RS2 mass air flow meter for different software. I will have 
>>to
>> >>run through all the hoses and make sure there are no leaks anywhere 
>>now.
>> >>When your car cuts out, does it restart right away or do you have to 
>>wait?
>> >>Regards,
>> >>Ernest
>> >>
>> >>
>> >>
>> >>
>> >>--
>> >>No virus found in this incoming message.
>> >>Checked by AVG Free Edition.
>> >>Version: 7.1.394 / Virus Database: 268.10.4/396 - Release Date: 
>>7/24/2006
>> >
>> >
>> >Bob
>> >urS6 for sale: http://chips-ur-s.com/S6.html
>> >
>> >
>>
>>
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>>
>
>
>--
>Douglas in MN
>95.5 Audi S//6 Avant
>73 BMW R60/5 mit Toaster Tank