[N54_e90]

I've been having a small hesitation at WOT between 3K-4.5KRPM. Did a log and I notice at the RPM the LPFP dips to under 60 which I believe is the issue? Correct me if I am wrong.

If this is the case do you think it is the sensor or the actual fuel pump? Never ran e85, only boostane race additive.

Log: https://datazap.me/u/crazythedon/93-...0&data=3-12-20

[Bimmer_Bro]

Originally Posted by crazythedon

I've been having a small hesitation at WOT between 3K-4.5KRPM. Did a log and I notice at the RPM the LPFP dips to under 60 which I believe is the issue? Correct me if I am wrong.

If this is the case do you think it is the sensor or the actual fuel pump? Never ran e85, only boostane race additive.

Log: https://datazap.me/u/crazythedon/93-...8;data=3-12-20

Most likely the low pressure fuel pump is starting to get weak. It does dip,however looks like it recovers pretty quick. I assume it will only get worse tho. The pumps are pretty cheap and there is lots of diy on YouTube.

[N54_e90]

Was def the pump.. car died on me lol. Had a friend put in a walboro 450 and im good to go