What the hell could be wrong? After installed APR downpipes,cats, and UUC exhaust I've been getting
01-29-2005, 11:22 PM
#1
What the hell could be wrong? After installed APR downpipes,cats, and UUC exhaust I've been getting
My check engine light coming up. First couple of times it was for the o2censor. Do I just need to buy new sensors? How can I fix this problem? This time when the sign came on the code read improper mixture of air and fuel. I just want the damn sign to go off and replace/fix whatever I need. Could anyone help me out with this? Appericate any help.
Thanks,
If the improper mixture of air and fuel is coming on due the MAF sensor would it triger the check enigne light if I upgrade and put a RS4 MAF?
Thanks,
If the improper mixture of air and fuel is coming on due the MAF sensor would it triger the check enigne light if I upgrade and put a RS4 MAF?
01-29-2005, 11:33 PM
#2
what turbos do you have? stock? ko3 or ko4? also just replace your MAF with a stock one
and you check engine light is most likely from the downpipes. What chip are you running? Any chip? If you are running apr chip, upgrade to apr stage2+ chip and your check engine light will go away. 
good day
good day
01-29-2005, 11:36 PM
#3
I've got the K03 and it is not chipped yet I've bought the GIAC chip just not in. Would it still sho
would it still show the sign if I upgraded to the RS4 MAF rather then puting the stock one. I'll upgrade to the KO4 turbo in the future.
Thanks for the info
Thanks for the info
01-29-2005, 11:47 PM
#4
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Don't use an RS4 MAF. Use a stock S4 MAF. As for the light, sure the O2s are the proper order?
It is possible to be accidently put in wrong. Could be one got damaged during the install. I know of a couple people that have had this happen.
01-29-2005, 11:50 PM
#6
2nd. DO NOT PUT IN RS4 MAF! put in oem s4 maf...and giac chip will do you wonders
be sure to check those o2's out and make sure they are in correct order and undamaged. are you running cats btw? catalitc converters...?
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01-29-2005, 11:55 PM
#9
Tech around where I live that does work on vw and audi. Has done couple of s4.the cats are highflow
I've heard good things about GIAC thats why I went with them but wanted to know since ive got APR items on the car would their chip be better?
Thanks for all the help really appericate it guys
Thanks for all the help really appericate it guys