Here is my mods
2.3l stroker
272 cams
67trim turbo. Garrett
255 walbro fuel pump
1000cc FICs

The car is running lean on acceleration, problems started after oil change and gas fill. Could it be my fuel pressure regulator?if anyone have any words ideas of wat could be wrong

 

nothing to do with oil changed. Did u put e85 in it?

 

No I put 93 pumpgas from BP. He car idles fine but wen u give it gas my wideband shows lean, very lean

 

prolly to much salt water in the mix

j/k but i would check for vacuum leaks on the intake (if your running stock ecu with a MAF), check the vacuum hose to the fuel pressure regulator. both can cause the car to run lean

 

Yea I checked those as well I ordered an aftermarket regulator from SBR hope that's it

 

put stock regulator on and see

 

how much boost? pretty sure you might need to up your fuel pump needs.

 

replaced fuel pressure regulator, new pump, new 1000 cc injectors , don't kno wat else it could be

 

go to AMS or Strictly modified. Maby you need a tune.

 

On very rare occasions you may catch a bad batch of 93. I would try using shell or mobile gas. Or like Kevin D says check the vacuum line to the regulator.

-Cisco