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I just used my stock fuel pump time being. I dont know why but with dw300c pumps my car would throw fuel pump circuit code and shut 1 pump off completely( go into limp mode) At high rpms the car...

My tuner tried everything possible but at the end I just put the stock pumps back in and drove it for the season, The car started to lean out with the stock fpr in at high rpm. With the dw pump and...

Any luck with this situation? currently have dw pumps and car keeps throwing p0231 and fuel pressure command is always at 100% causing the car to turn off the secondary pump and trigger the code.

Hey, did you get this figured out? Having the same issue at the moment. I did the dw300c drop in pumps and the fpr. My fuel pressure is very high at the moment. 108 psi idle and drops to 104-105...