Hi, i am new to this forum, and i've already ran a search for this problem....seems like no one had this problem before

i have a daily car ...2000 Protege 4 door...
it's check engine light lid out last week, it's throwing code 171.
according to my friends at mazda,
PO171 is for fuel trim system too lean.


so, i am wondering if anyone has a repair manual handy, please tell me what is the suggested solution to this problem

also...any other info will be great..

thank you

 

which engine do you have....1.6L or 1.8L ???

 

it's a 1.6 protege LX

thanks

 

you need a maf , which is pretty common for these cars , the factory unit will be a reman