On closer inspection I noticed my maf is made in mexico can that be y I am getting p0102 and p0171? car runs and idles fine..I changed to a k&n filter also..

 

Is it an ac Delco maf? Those are both maf related if u just got an aftermarket one get a Ac Delco brand these are really picky cars

 

I don't think its an ac delco,lot of reman ones on ebay,saw 1 Delphi one...they are a few bucks I see...

 

Lemme guess...
You started having trouble and those codes poped up shortly after you installed the K&N filter correct?

The K&N filters do not work on our Monte Carlo's.
The oil in the filament of the K&N contaminates the MAF... All the cleaning in the world wont ever clear those codes and will lead to stalling and misfires... eventually...

I do recommend either going back to the stock filter and box..Or if your going to a cold air intake system..
I highly recommend useing a CAI Inductions system.

My recommendation:
Discard the K&N filter...
also I would replace the MAF sensor with "ONLY" an AC Delco MAF sensor!
Not delphis, nor Bosch they are all junk... and eventually start causing runability issues.. A few of us here(Me included) had to learn that lesson the hard way...

 

waaaa? i didnt know the k and n werent good on these, the set up i have seen on some of these was laughable when it was called a cold air that was the onlybad thikng i seen about it, i have a cone filter but its halfway into the fender, it wont fit all the way, hey dave do you know what size fits all the way in the fender by any chance? my old one is starting to tear up

 

Owen:
Unfortunately... I don't.

There isn't any company that makes one for my 5th gen.. So, I have stayed with the stock configuration.

However,
you could call CAI (Cold Aire Inductions)and see what info they may offer. (810) 392-9999

 

I will get a stock filter today,the old filter that was in this car was horrible,person never took good care of this car,he owned it from new...he should do hard time for car abuse lol

 

ok put in a reg air filter and cleaned maf..if it pops code again I will look into a new maf..a guy on hereon the forums got 1 from autozone,a cardone and his works fine.

 

Who was it?
Ive never heard of a cardone...
how long has it been on the car?

 

Glasspilot
https://montecarloforum.com/forum/mo...e-p0102-49224/