JWeb

I posted this on the VAG-COM forum yesterday, but there was no response. Please excuse the cross-post, but I'm hoping to confirm so I can place my order! (Perhaps there was no response because this is a commonly asked question over there.)

--- x-post:

Last week, I posted over on the C5 A6 forum about some peculiarities with my recent APR chip upgrade ('01, 2.7T, 6sp). Overall, the upgrade is great - as everyone with the chip upgrade would say. However, I have noticed that the car often feels like it is lacking the grin-inducing power that the chip provides - it just feels like the chip isn't there.

My question here is if the VAG-COM will be useful to gather information about boost pressures and timing - two variable I think might be causing the presentation of symptoms. I am nearly the certain the VAG-COM will provide this info and much much more... initially, I wasn't going to buy a VAG-COM to diagnose just this problem, but my CEL came on yesterday. I am nearly certain this is from a mis-fire condition (caused by the ailing spark plugs that I really need to replace). I figure if I can kill all these birds with one stone, I can finally justify the VAG-COM purchase.

What say yous?

Thanks in advance,

JWeb

im_cecil

Yes, a VAG-COM will monitor and log boost, fuel delivery & engine conditions. And checks codes.

Ritz

Is your throttle body boot torn? Are all the clamps tight in the intake path? Are you using new/improved diverter valves?

Cheers,