1990 Pontiac Grand Prix LE - Price: $500 OBO in Colorado Springs, Colorado

xxxx Pontiac Grand Prix LE for Sale
I am selling my xxxx Pontiac Grand Prix LE, ~91K miles. This was a great car to get from point A to point B, however now it seems to have an electrical problem (or something) and will only run for a short period of time before it seems to "choke-out". However the short time it does run (between 7 and 20 minutes), it sounds great from all of our recent repairs! I cannot afford to take it to a mechanic to diagnose the problem. We used a code-reader which said it was our O2 sensors, which we replaced, and the problem still seems to occur. Below, I have listed all the other parts that we have replaced trying to fix this issue.
The interior is in pretty good shape with a pioneer stereo and after stock speakers, there is outer body damage; the paint is peeling from the hood, the alignment is a little off, there is a dent and bumper scuff marks on the driver's side, and a small dent on the passenger side. The passenger side door and the rear driver's side doors are the only ones that work properly, the handles had snapped in the other doors due to freezing temperatures, easy fix! The driver's side-view mirror is gone, and the windshield is cracked. Since it has been sitting for so long, it will need a jump to turn over, and the rear passenger tire is flat, but I have a full spare in the trunk. Valued at $2,366, with damage, issues, and new replaced parts, I'm asking $500 OBO , cash only. It will need to be picked up.
FYI, the lines and spots in the images are just the sun glaring through our fence on to the car.
If you're interested and would like more info or to come take a look at the car, please leave a voicemail or text 7 one 9 - two 1 seven - 8 four 6 five
Recently Replaced:
02 sensors
Thermostat
1 of the 3 coil packs
Fuel Pump
Fuel Filter
Spark Plugs
Spark Plug Cables