Davojan59

hey guys im still getting these two codes P0172 and P0175 and i didnt get any help last time but hopefully ill get some this time. Both codes only pop up when im idling for more than a couuple of minutes. Well ive been clearing them with the tuner and it was fine before but this morning it took me a few cranks to start it. The first couple of times it just surged. Ive heard that a leaking or ripped pcv hose could be the cause ive rethreaded the connection that goes into the intake before the blower and even used teflon tape to make sure its sealed. When i finally started it this morning it was obvious that it was running pig rich from the smell and from black spots on my rear bumper. If anyone has any other idea please let me know as i am stuck in texas and need to drive it back to NC. Thanks

Dave

mvr

https://mustangforums.com/m_2536440/tm.htm

P0172 System Too Rich - Bank No. 1.
P0175 System Too Rich - Bank No. 2.

Davojan59

thanks man buti already know what they mean but im trying to figure out what could cause this.....

Sap

Air leak after the MAF would cause this.

E.

1BadSonicBlue02GT

very possible, could it be a vacuum leak?

Davojan59

air leak after maf does make sense....im gonna check that. Ive tried looking for any vaccum leaks and couldnt find any.Anything else out there??

cliffyk

Here's a link to the DTC codes and diagostics tips from the 2003 shop manual...[/align][/align][/align]