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P0172 & P0175

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7.6K views 4 replies 2 participants last post by  barkerpa3466b  
B
#1 ·
he every one kinda new here but not on the other site but its down and I have an issue that I need to fix......and I tried the search first but no-body seem to have quite the same problem

Ok my problem is two codes P0172 and P0175 (System Adaptive Fuel too rich bank 1 & 2.)

My Ride: 03 GTS 5-speed
My Mods that matter: V2 AEM intake, Iridium plugs and outlaws manifold and throttle body spacers.

The story: About 4 months ago I had a huge vacuum leak that caused various codes and would not hold an idle not wanting to deal with it I took it to a local shop. There they replaced the O2 sensors and the mass air flow sensor and got the car running but you could still here the massive leak and the car did not run all that well( I guess that is what I get for taking it to a shop where the people just to what the computer tells them.). So I took it home and start tearing into it trying to find out what is causing my leak. While in the process of this I find what I think is the idle control valve (see pics) half way out of its hole ………so I re-installed it and my car now runs great and no more leak that I can here or detect but my codes will not go away, I have a code reader and can clear them but they come back after a little awhile.

What I think so far: I don’t think that my mods caused my current problem because my car was running great for about 3 months before I heard the leak. But I do think that my TB is the cause of the codes I just don’t know what it is or why.

So that’s it
Any help/advice would be appreciated.
Or if you knew of a shop in the bay area that dose more than what a computer tells them too would be great.

http://i297.photobucket.com/albums/mm231/barkerpa3466lmc/TBpic1.jpg

http://i297.photobucket.com/albums/mm231/barkerpa3466lmc/TBpic02.jpg

http://i297.photobucket.com/albums/mm231/barkerpa3466lmc/TBpic04.jpg

http://i297.photobucket.com/albums/mm231/barkerpa3466lmc/TBpic03.jpg
 
B
#4 ·
update

Ok so after about a year of not dealing with the codes my hand was forced because my smog is do by the end of the month so in order to figure out what was going on I decided to ohm out the MAF, TPS, IAC and MAP sensor
the all checked out at that point I decided to replace the FPR because a member on another forum said they tend to fail rich and buying the stuff to test my fuel pressure cost the same as a new FPR so i just replaced it and no change with the codes.

At this point I started to suspect the parts that the shop put in so on a whim I replaced the MAF reset my computer and bam the P0172 code was gone:ndance:

So now I was suspecting that the O2 sensor that was put in was bad too. Not having the time to replace them and test i decided to try a shop out

after checking out my car for 100 bucks they told me that I had too many mods on my car and they couldnt help me:squint:

So I took my car to a buddy..... to try and figure it out he swaped the 2 O2 sensors to see if he could get the p0172 to come back and the p0175 to go away thus the code fallowing the bad sensor he reset the computer and drove it around for a couple days no code :) go figure

but after doing a final test drive before giving it back to me today my timing belt broke and the engine is now seized :mecry2: so now Im thinking I might do a 6g74 swap but nothing is set in stone yet

any way I hope this helps anyone with these codes
 
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