Yes I have looked at that thing and wondered if that was the issue. The check engine light is on and at rpm between 1k and 2k the needle gets unsteady and dogging begins. At first I thought it was contaminated gas ( I emptied some stored gas into the car at one point ) but the Auto Zone code reader comes up low pressure / fuel regulator issue consistently. That part is $207 at one popular internet parts site and $122 at another so I may gamble on it. I have a sending unit for the gas tank coming in the mail soon as well as I get the chugging of a car running out of gas at the 1/4 mark. This car is going through a serious death cycle as I have seen other Volvos do where I seem to replace something every two or three weeks and then the cycle ends for 40 or 50k.
Here's a link to the other part that might be the problem
http://www.fcpeuro.com/products/volvo-fuel-pressure-damper-genuine-volvo-9186278

Thanks for the photo. Those help a lot