i just talk to a mechanic from a nearest audi dealer, i told him that i was having a problem with my car, maybe someone can answr it for me, when my car idleing normal it idles about 1000 rpms, but rcently when i stop my car it will idle then act like it wants to stall out, and then when i step on the gas it hesitats really bad and will barley go, it will act like the engine wants to stall, when i spoke to the mechanic he said it was possibly the vaccumm hoses but i need some more input can someone help, please if this description isnt good ill try my best to describe more, thanks

 

yep, a air leak or vacuem leak big enough can do stuff like that.

and car not suppose to idle at like 1000RPM, more likely 600-850RPM

Also can be dirt in the idle control valve, or malfunction.
Could be MAF
throtle position sensor
idle sensor
just to name a few.

Start with small and go up to big, first check for leaks
then check maf
etc... Get the picture?

 

i just bought this 2 months ago so im trying to know the car, anyone knoe the locations of the hoses??

 

ok i went and had the car scanned for codes and it came up with P1127 and said something about the manufactured controller, air and fuel management... they looked it up and said it was a bad 02 sensor, it this possible or can someone give me a better idea, and can i bad 02 sensor make my car run like this?

 

O2 cannot make that much hesitation!!!

 

ok, to make this more clear on what the car is doing, when i take off its almost like a "chuga chuga" kind of like a train, even when im driving it will shutter a little, and will sound weird coming out of the exhaust, kind of like a bakc fire, hopefully that clears it up !!!

 

could it also be the ignition switch sensor on top of the air box?