P0141
definition
heater condition(heated oxygen senor bank 1 sensor two
probabl cause bad sensor poor connection at sensor
and bad circut fuse.ok i understand that but wich sensor is is bank 1 sensor two ..what the hell is bank 1

P0303
cylinder misfire at cylinder 3 wich is bullshit cause it had a misfire in cylinder 3 and i replaced the coil and vwala it runs fine now probable cause vacumn leak wouldnt surprise me
bad injector
high or low fueal pressure

P0717
(ISS) circut low input VSS input over 6-mph-ecm detected the iss signal less than 50 rpm
failed input speed sensor
open or short circut condition
corroded or mouuister in connector



ok so all the probable causes make sense but none of the explanations do i dont know whats going on im beginning to hate my car with all the damn sensors and computer bullshit can anybody help me out here

Bank 1 sensor 2 is the rear sensor after the cat. Try changing that sensor and see if the problem goes away. However, looking at the codes I have to wonder if there'* a problem with cylinder 3 and a weak fire causing raw fuel to enter the exhaust system and over loading the cat, and that is causing the problems with O2 sensor 2

idk ive replaced the pugs wires and coils and it runs wayyyyyyyyyyyy better now but there is probably some due to my maf is unplugged beacause one i got a good one all these issue appeared and it runs like **** with it plugged in so i leave it unhhoked

You will really need to get a MAF, you need to run on real data, not hard coded tables. Without real time data the AFR can't be set right. If your running rich it will over load the O2 sensors and kill the cat.

well i just plugged the maf back in and went for a drive and it seems that it has more umph when i accelerate(i live on a curvy road so alot of braking and accelerating)and this was just normal not overly hard acceleration but when it idles its sound like i have a big *** race cam in it its like a reall lopey idle??

and what is an afr

Air Fuel Ratio

ok so what is going on does anybody know by what im tellin you guys cause this computer and sensors and all this drives m,e of the wall im used to old school 305'* n 327"* n 350'* n 454'* that doesnt have all this stuff im at my witts end to the point where i just wanna get rid of it and go back to old school stuff

I have found a few times now a leaking EGR tube will cause a idle like this. The only way to really tell if it'* bad is to remove it and hold it up to the light.