The engine is running rough struggles to pull up Hill and really in general has something to do with fuel pump even though I just got fuel pump replaced never through this code before Ithe went to the shop also p0152 running lean something with o2 sensor p0305 cylinder 5 missfire just got coil packs off american muscle plus an egr valve someone please help me out I've put so much money in this car for ****ty work to get done so I'm doing it myself anything would be helpful and appreciated

 

P1237
- Faulty Fuel Pump Driver Module (FPDM)
- Fuel Pump Driver Module (FPDM) harness is open or shorted
- Fuel Pump Driver Module (FPDM) circuit poor electrical connection
- Faulty fuel pump

The FPDM controls the voltage on these cars fuel pumps, this is what controls fuel pressure, since they dont have a regulator.