Checked my fuel pressure, everything came up within specification range. So now I can rule out that there is something wrong with my feul system (pump, injectors, sensors etc.) Can I definitely conclude that it's a O2 sensors that's been throwing my codes.

 

I must have missed something, or jsut forgot, but didn't you have a leak after your maf or something like that?

 

nah dude, im just throwing a rich code p0172 bank 1, my car is running sluggish and hesitates when i give it gas.

 

Did you check the O2 sensor?

 

By check what do you mean?

 

As in replace them to see if thats what it was.

btw, good luck with that - Its not fun dealing with rich/lean issues due to sensors or evap ctrls.

 

If you give it gas and it bogs, then a vacuum leak could be the issue, or a leak after the MAF. Run a smoke test on the intake/vacuum system to make sure.

 

how would I go about doing this, im very much car inclined so maybe an easy write up or a link would to the trick. Thanks ryan