ac921ol

16815. P0431
Warm Up Cat Bank 2 (below efficency) *ive cleared it and it came back, and i have celimiantors

17883.P1475
Evap Emssions Control Leak Detections Pump (LDP) Malfunction: No-Signal

16486.P0102
Mass Air Flow Circuit (Low Input)

im assuming the first code is my cat going bad, which sucks...i have piggie pipes...

the other 2 codes i have no idea what they are...

HdiaS4

MAF could be going bad (that is code 3) or not plugged all the way in or dirty.

code 2, not sure.

ac921ol

or i could just clean it, would me just brushin some cloth over it work??? i guess its worth a try..

djillusion

i had 6 different sets tested on my car before a specific length for each test pipe worked to not throw a CEL.

HdiaS4

correct, i would just use the diode on the wire. much easier.

HdiaS4

if you brush the sensor its done!!
get some MAF spray cleaner at an autozone or so.

Firts try to make sure the maf is plugged in right and tight.
are you a 2001.5 m box? did you have to rewire the maf? if so try to check the wiring also.
good luck.

pitchS4

MAFs don't care what stage you are try some rubbing alcohol and a cloth first

ac921ol

and for the celimiantors...i need a different size really??? why...what about the LDP...does anyone have one laying around..