p0172 and p0175 Help needed

[01 limited]

I have a p0172 and p0175 rich on bank 1 and 2. Just had the fuel pump regulator assy. replacd and the code is still there. I had 65psi at the rail previously. I haven't checked it again but i was told that i need a new maf. But my warranty didn't cover it. I'm just wondering if I really need the maf. I'd hate to replace a maf for $200 that doesn't fix the problem. Any help would be appreciated. What do you guys think.

 

[01gt]

Remove the maf and clean it off using electrical cleaner and reassemble. Check the small wire and as long as it is not broke this will probably work do not use brake cleaner or carb cleaner though they leave a residue.

 

[Cobraguy]

CRC BrakeKleen is VERY safe to use. Get the red can...not the green. That stuff cleans extremely well, dries very fast, and leaves no residue at all. I've used it for electrical cleaner for years with never a single problem.