I am experiencing what I must describe as some what of a "bad gas" feeling coming from under the car. It's as if there is a misfire problem going on. I took it to my dealer, and they say that they can’t find an issue. I know my car and you can feel a distinct difference between the sweet rumble of my LS2 and "this". By the way, they checked for leakes in my exhaust (Corsa) Does any one have any input?
I am experiencing what I must describe as some what of a "bad gas" feeling coming from under the car. It's as if there is a misfire problem going on. I took it to my dealer, and they say that they can’t find an issue. I know my car and you can feel a distinct difference between the sweet rumble of my LS2 and "this". By the way, they checked for leakes in my exhaust (Corsa) Does any one have any input?
What year? How many miles? Is this a smell, a sound or do you feel it? What Mods do you have?
More info please....
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Spice Red 06
11/05 build
VolantCAI
IXiridium Plugs, 10.4 Taylor
GMM
Pedders StreetII+ (1/2" drop)
Hotchkins Swaybars
Full AMSOIL & RP
JBA Shorties/Cats
MagnaFlow w/Xpipe
I just ran through a bad tank of gas. Holding at 70 in 5th, I could feel and hear her surge....same thing if I intentionally held her at high rpm like in 3rd or 4th. At idle, it would hit like normal, then shake and sort of 'phht' instead of the normal rumble. I ran that tank down, refilled, and I'm back to normal.
My gas mileage sucks lately...I find myself driving in 5th most of the time below 90 or so simply because it sounds better
I have a A4 with 8K on it. The only mods that I have are, Corsa Sport exhaust, and K&N CAI......I tried refuling once I completly ran out of gas, but the problem is still there. When I watch the engine at idle, I can see the motor kind of jump when the "mis fire" happens.
When you replaced the CAI, did you disconnect any kind of mass air censors? Could be the computer is not reading something right? Could be in the Intake itself, not getting proper airflow and the computer is not reading it right?
Dealer install doesn't really mean much. Any time I messed with any part of my intake, my 99 vette used to surge something fierce. I actually had to pull a few fuses to do an idle relearn. This sounds what your dealer may need to do.
Go to the dealer's service dept... have your service advisor attach the computer reading device to your plug under your dash. This should be able to pin point the problem or at least tell you where the problem lies.. They can do this im a matter of miuntes. WITH OUT taking you in the service bay and charging you 49.99 or what ever just to hook you up.
Yea, I've got one of those!!
It doesn't surge or anything but at idle it seems to have a miss where the engine sort of jerks. I test drove two when I bought mine and they both had the same "miss".
I thought it was normal and since it runs low 13's stock I don't worry about it. I think its the HP cam
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