Monday my 2000 Grand Prix GT decided to not run after a 5min trip to Lunch. I replaced the fuel pump assembly , fuel filter cleaned the MAF and took the K&N out and replaced with fram paper filter. After I replaced the pump , BINGO ran great for a trip around the Block. Thank God the doors (on it) were frozen this Morning, (Thaks Big Guy) took the truck. After I got home, It started and idled just fine, for 4 min. then fluttered and now I have the same issue i had before the Tow truck arrived. more exhaust then normal from tail pipes. Pump runs a bit after false start.
I'm here, I appreciate the Help.
codes from 16 days ago- 128, 131 & 137.