Audi S4 2006 ( HELP NEEDED)

[zasosa]

Hello All,

I am new to this forum and got my first Audi recently. Got S4 Automatic 4.2 V8 2006, 100k Miles .
I am suspicious there something wrong with my car since BMW E91 2.8 and 3.0, F..ed mu in Drag from 0 . :( I got Error Code Check Engine for two front Oxygen Sensors, other things are ok . Acceleration I have measured with Stopwatch is 7.2-7.5sec from 0-60mph .

One my friend said this is an Old car already thats maybe a problem of missing Some HPs.

Please Help ! I got Frustrated

[CDN_S4]

that does sound sluggish. Is it stock, modified, tuned...? Even for a stock I think it's slow as it should do 0-60 in just over 5 seconds.

[zasosa]

Yes, it is completely Stock. I have recently changed Spark Plugs, Air-Filter, Fuel-Filter and Oil ( Mobil-1 ).

[zasosa]

What is normal Acceleration in secs from 0-60 for Automatic Transmission.

[CDN_S4]

http://www.zeroto60times.com/Audi-0-60-mph-Times.html

there's a freebie for you, found it in 6.8 seconds....GOOGLE is such a great invention, you should try it sometime

[zasosa]

http://www.zeroto60times.com/Audi-0-60-mph-Times.html
2005 Audi S4 0-60 mph 5.4 Quarter Mile 13.7

Where did You found 6.8 Seconds ?

[CDN_S4]

I found your answer to your question in 6.8 seconds....nevermind.
the S4 on paper should do 4.8 seconds

[zasosa]

What Could be a reason, I mean what do I need to repair. When Diagnostic tool shows only " Efficiency etc. on Front Oxygen Sensors , which possibly are damaged" . Does Catalytic oxygen sensors somehow affect acceleration ?

[CDN_S4]

What Could be a reason, I mean what do I need to repair. When Diagnostic tool shows only " Efficiency etc. on Front Oxygen Sensors , which possibly are damaged" . Does Catalytic oxygen sensors somehow affect acceleration ?

No, it's just a sensor, it doesn't do anything but sense oxygen levels. I don't know what to tell you, buy some upgrades, exhaust, JHM chip would be a good start. Especially if you plan on taking it to the track.

[zasosa]

Please advise where to buy JHN Chip . In Any case i suspect there could be a problem 7.5 Secs :(.

[CDN_S4]

You must not have been using the internets very long....SOOOO....just because you are a legit noob, I'll help you out. See the sponsor on this forum called JHM? When you answer YES, then click on it and it will take you to their site. OR you can type JHM into GOOGLE and it will find it for you. ALSO, there is a SEARCH button on this forum for all your questions. Use it!!
You need an exhaust before your chip will be worth while!

[zasosa]

Look, I am looking for a advice about my Car Issue, I am not looking for Lesson how to use Google . If You can help , write something regarding topic, if not Plz stop flooding.

[stmcknig]

There's no helping some people is there...thank goodness you didn't mention the Rubber Chicken

What my fellow poster is trying to convey is that "my car accelerates like crap" isn't going to be something easily fixed with a forum post. Could be anything from crap gas to poor compression to leaving the handbrake on to not being in Sport mode. This kind of forum works best for specifics like, how do I change the snub mount, replace my wheel bearings etc. "Performance" is going to be iterative when you start crossing things off the list of things it's not - like bad plugs as you have done already. Maybe.

[CDN_S4]

There's no helping some people is there...

NOOBS...what can you do....can't say I didn't try. Felt bad for the guy and slow ass S4....LOL

[steveo72]

No, it's just a sensor, it doesn't do anything but sense oxygen levels. I don't know what to tell you, buy some upgrades, exhaust, JHM chip would be a good start. Especially if you plan on taking it to the track.

Are Audi's that different than every other car on the planet? A bad o2 sensor in every car I've owned will screw up fuel trims and cause poor performance and mileage.

[CDN_S4]

Are Audi's that different than every other car on the planet? A bad o2 sensor in every car I've owned will screw up fuel trims and cause poor performance and mileage.

You are absolutely right and I was absolutely wrong. A bad O2 sensor will indeed throw off the air/fuel ratio and affect performance. Sorry my bad, opened my mouth too quickly!

[mgikone69]

my money is on intake manifold flap is not flapping

[andy.w]

if it aint in sport mode it will be slow...I have a bitchtronic trans in my 04 should have waited and bought the 6spd

[JimmyBones]

zasosa, Please stop abbreviating. I am rather lazy and I don't like having to figure out what you are trying to say.

Also exactly what codes are you getting? There are Pxxxx numbers and descriptions. Once we know those then we can get a much better idea of what is going on.

Other than feeling slow are you noticing anything else like blue or black smoke when you accelerate?
Are your exhaust tips black from soot?
Does the transmission feel like it is slamming in gear when it shifts?

An automatic S4 always feels slower than a manual S4 to me unless it is a B8 but that doesn't apply here.

[greenarmyman]

Seeing as you came here for free advice With minimal effort exerted by yourself self entitlement self, I will offer you some...it is generally not a great idea to insult the people you are seeing advice from, it generally does not turn out well. Matter of fact it turns out about as well as someone who knows nothing of the b6 putting it on a track and racing it. I am a newer s4 owner myself, the difference is I have spent the equivalent of days researching everything I can read on these forums to better understand the amazing machine. You appear as though you do not want to exert any personal effort towards solving your own issue. Do yourself a favor, sell your car because if you do not take the time to understand the basics then you are looking at scored cylinder walls and an engine replacement in your future.

[awwturbo]

Look, I am looking for a advice about my Car Issue, I am not looking for Lesson how to use Google . If You can help , write something regarding topic, if not Plz stop flooding.

awww yeaaaahh!! he just opened some whoop ass!

[JayDog747]

Let's go through the check list: Is the parking brake engaged?

[JPM-Engineering]

Hello All,

I am new to this forum and got my first Audi recently. Got S4 Automatic 4.2 V8 2006, 100k Miles .
I am suspicious there something wrong with my car since BMW E91 2.8 and 3.0, F..ed mu in Drag from 0 . :( I got Error Code Check Engine for two front Oxygen Sensors, other things are ok . Acceleration I have measured with Stopwatch is 7.2-7.5sec from 0-60mph .

One my friend said this is an Old car already thats maybe a problem of missing Some HPs.

Please Help ! I got Frustrated

A couple of questions
-What fuel are you using? 95-97?
-What temperature (ambient) when you test the car?
-What altitude ( test area)?
-Did you do a compression test?
-Did you check the intake manifold flapper?
-Check the catalytic converters , maybe they are clogged ...
I have test my car 04 tip , here you can se the test I have done.

http://audirevolution.net/forum/index.php?topic=1437.0

Regards

[zasosa]

- I am using 97-98 Fuel
- Ambient is about 25c
- Around 600meters
- No I did not pass any compression tests
- No I have not check intake manifold flapper yet
- I will check Converters
-

[zasosa]

Transmission works perfectly no slams.

[JPM-Engineering]

What type of device was used to test the 0-100km ?
Did you use the OEM Spark plugs ,air filter?
Please do compression test to see how good or bad are the cylinders.

Regards and good luck.

[event]

With a stopwatch? Speedometers are never accurate and you are even less so. At the least try using an app that will read acceleration like Dynolicious (iPhone) or Torque Pro (Android). Even then you aren't going to get an accurate read.

[zasosa]

Air filter, spark plugs , fuel filer are changed


Fault log report generated by Torque for Android
=================================================

Vehicle VIN: WAUGL68EX5A488297
Vehicle Manufacturer: Audi
Vehicle Calibration ID: 8E0910560M
0010

Current Fault Log
------------------
P0421: Warm Up Catalyst Efficiency Below Threshold (Bank 1)
P0431: Warm Up Catalyst Efficiency Below Threshold (Bank 2)

Pending Fault Log
------------------
P0455: Evaporative Emission Control System Leak Detected (gross leak)

Historic Fault Log
------------------
ECU reports no historic faults
Other discovered fault codes
(possibly pending, current or manufacturer specific)
----------------------------------------------------
ECU reports no other fault codes logged

End of report.

[zasosa]

here is video of Acceleration :
http://www.youtube.com/watch?v=doJThIk42v4

Fuel is 97-98.
NGK Iridium Spark Plugs
FRAM Air and Fuel filters.

[JPM-Engineering]

here is video of Acceleration :
http://www.youtube.com/watch?v=doJThIk42v4

Fuel is 97-98.
NGK Iridium Spark Plugs
FRAM Air and Fuel filters.

That its normal man, with 33 degrees Celsius this car do 6,3-8 easy ( and probably a little more if its heat socked ), its look totally normal , please take a look at the link I posted and see how the temp affect the performance.
The first thing you need to do its to take out the pre-cats ( piggie pipes) this will make the car go much better in any situation, it will also help with the live of the motor. I would change the fram air and oil filter with OEM, The Mobil one oil Im pretty sure its not design for this motor( Maybe making a mistake ,I think its does not support 502-505 Audi standard ).
Regards

[event]

here is video of Acceleration :
http://www.youtube.com/watch?v=doJThIk42v4

Fuel is 97-98.
NGK Iridium Spark Plugs
FRAM Air and Fuel filters.

You're in sport mode but it looks like you only revved to 6400 in first and 6600 in second. Are you not hitting the kickdown? Seemed like you had a flat spot at 2300 rpm as well in first. Maybe this is just how a un-tuned S4 is though. I didn't pay too much attention prior to getting the JHM flash.

Does look like it's about 8 seconds. I've run my car pretty much back to back in 80+ degrees when I wasn't tuned and never got anything near 8 seconds. This was with precats intact as well.

[zasosa]

Yes I have pressed kickdown

[nath]

something definately wrong here
i have a tiptronic s4 and it accelerates far harder than that in first and second
the error codes that are being displayed are the same as what i got when i gutted the pre cats .... maybe the previous owner has gutted them allready but has not sorted out the tuning side of things

[zasosa]

Nath, what have You fixed, tuned ?

[nath]

also check inside the rear drivers side cubby theres a small amount of valves and piping which controls the exhaust
if its not pressurising it wont open the exhaust above a certain rpm

[JPM-Engineering]

You're in sport mode but it looks like you only revved to 6400 in first and 6600 in second. Are you not hitting the kickdown? Seemed like you had a flat spot at 2300 rpm as well in first. Maybe this is just how a un-tuned S4 is though. I didn't pay too much attention prior to getting the JHM flash.

Does look like it's about 8 seconds. I've run my car pretty much back to back in 80+ degrees when I wasn't tuned and never got anything near 8 seconds. This was with precats intact as well.

The Tip S4 rev in 1 gear to 6200 rpm and 6800 in 2G. From the vid it can clearly see from seg 19 to 26 this car gets from 0-60mph
This car ( stock) goes like its should with over 90 degrees F .
Regards.

[event]

The Tip S4 rev in 1 gear to 6200 rpm and 6800 in 2G. From the vid it can clearly see from seg 19 to 26 this car gets from 0-60mph
This car ( stock) goes like its should with over 90 degrees F .
Regards.

That's funny cause I just found two vids on Youtube that show it revving to damn near 7k in first and second. First one isn't confirmed stock but second is.

http://www.youtube.com/watch?v=m8QP24mM1WM

http://www.youtube.com/watch?v=yFw0bhdzfJo

[karachy]

something definately wrong here
i have a tiptronic s4 and it accelerates far harder than that in first and second
the error codes that are being displayed are the same as what i got when i gutted the pre cats .... maybe the previous owner has gutted them allready but has not sorted out the tuning side of things

I'm told without the pre-cats the car should perform better / the same as stock (even with no ECU mods). What are your experiences?

My pre-cats will be removed next week and I'm not sure the JHM tune will arrive in time, so that's why I'm asking.
Sorry to sorta jack the threat a little.

[JPM-Engineering]

I'm told without the pre-cats the car should perform better / the same as stock (even with no ECU mods). What are your experiences?

My pre-cats will be removed next week and I'm not sure the JHM tune will arrive in time, so that's why I'm asking.
Sorry to sorta jack the threat a little.

Karachy if you put some defaulters its not gonna get the engine check , this is how I did it , and 0 probs , here its a little review I did regarding Piggie pipes
Same track ,same temp, same weight etc

Best with Piggie pipes

0-100 5,7 seg 0-60 5,4seg
0-200mts 8,9 seg at 131,4 km 81,64 mph
0-400mts 13.7 at 165,7km 102,9 mph
0-1000mts 24,9 seg at 213,5km 132,66mph
100-150km 5,5 seg
100-200km 14,9 seg
0-200km 20,5seg.

Best with stock DP

0-100 5,7 seg 0-60 5,4seg
0-200mts 8.9 seg at 130,2 km 80,90 mph
0-400mts 13.8 at 164,7km 102,33 mph
0-1000mts 25 seg at 213,1 km 132,41mph
100-150km 5,7 seg
100-200km 15,3 seg
0-200km 21,1seg.

My thoughts , Piggi pipes do help , the car reacts much better in any rpm , the throttle response its also improve, low end and mid rpm range its where you can feel the most , this "free" mod can give 1 tenth and 1 to 1,5 ( 0.6 to almost 1 mile)km aprox of trap speed in 1/4 mile(pbox), top end power its a little better , overall this its a must mod to do , My opinion its the first mod you need in this car.
Seeing how this car reacts to the exhaust my next step will be a cat-back and then the tune.
Hope this help you.

http://audirevolution.net/forum/index.php?topic=1437.50

[karachy]

@JPM-Engineering: thanks for the info! Great info.

Next week monday: removal of the pre-cats. Hopefully on tuesday the tune.
Then, I'm gonna stop spending extra money (maintenance only) on this car and enjoy the mods. I'm saving up for a S5 convertible (with MTM tune :)).

Anyway on topic for the op, if the pre-cats are removed from the ops car, he shouldn't suffer a loss in performance. Just putting the spacers in (or proper tune) will clear the codes.