Throttle body issue?

**Coors** · 01-03-2009 07:38 AM

If the car is idling and I go to rev it up, depressing the accelerator pretty abruptly, I get a ping just as soon as the R's rev up. There is no hesitation, just a ping. If I ease in to it or tap it normally its completly fine. Just when I tap it very quickly and with some force. I run 93 octane as I have the GIAC program.

Could the timing be off? Or could this be more of a throttle body issue?

Or do I just have an engine troll?

**scot_w** · 01-03-2009 08:00 AM

So many possibilities, so little time. If you could check it with a VAG tool it would certainly narrow the possibilities.

**A62TURBO** · 01-03-2009 09:19 AM

How many miles does she have?

**Coors** · 01-03-2009 09:34 AM

So many possibilities, so little time. If you could check it with a VAG tool it would certainly narrow the possibilities.

No CEL. If i did, I wouldn't have posted

Scan= clean bill of health

How many miles does she have?

70k miles

Side Bar: Just swapped out spark plugs a few thousand ago. Its not plugs

**A62TURBO** · 01-03-2009 10:08 AM

You might need a TB done

**Coors** · 01-03-2009 10:09 AM

Originally Posted by A62TURBO

You might need a TB done

done at 65k

**A62TURBO** · 01-03-2009 10:13 AM

Originally Posted by Coors

done at 65k

Maybe you can take some video so we can hear it exactly

**scot_w** · 01-03-2009 12:50 PM

Originally Posted by Coors

No CEL. If i did, I wouldn't have posted

Scan= clean bill of health

I did not anticipate a CEL from your original post. I was thinking that when you looked at each cylinder you would be able to see mis-fires. When I take mine in for service the mechanic can see mis-fires that I have never noticed.

**Coors** · 01-04-2009 09:50 AM

is there a way I can monitor the ignition system or combustion rate of each cylinder, via the vag-com; with hopes of ruling out a misfire?

honestly, I have my doubts that its missing. the car pulls very hard through all the gears and is smooth as silk when doing so and also smooth when at idle.

it's not affecting performance it's just bothering the hell out of me. I always need something to worry about with this car. otherwise, I wouldn't be a true enthusiast.

if you guys know a way to monitor the combustion rate or something similar of the sorts i'm all ears. i'm searching vag com's procedure manual now. I may even contact vag-com, their office is minutes from my house.