High fuel trim have methanol injection Burgermotorsport stage 2 hpfp what could cause high fuel trim ?

[stuffle69]

Have 2022 kia stinger gt2 awd had problem with stuttering about 6000rpm , was told by couple shops was from hpfp crashing so purchased stage 2 hpfp from burgermotorsports did not help then had methanol injection installed still getting high fuel trim above 60 and still has stutter above 6000rpms right before 2nd gear shift attached couple logs can only run up to map 3 without the stutter running e30. https://docs.google.com/spreadsheets/d/1__pkHrg40pKDnErLGZaR-oml4kqf02FuoguQlsaXOeM/edit?usp=sharing

 

[stuffle69]

attached map 6 high fuel trim
https://docs.google.com/spreadsheets/d/1Qt8Ey5o1Lo4bkWFtkpPh9N55O5-3kh7WjqC9Y9rpMaw/edit?usp=sharing

 

[Codedog33000]

attached map 6 high fuel trim
https://docs.google.com/spreadsheets/d/1Qt8Ey5o1Lo4bkWFtkpPh9N55O5-3kh7WjqC9Y9rpMaw/edit?usp=sharing

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I am having same exhaust issue with stage 2 hpfp. Have you found a solution?

 

[FSTEDDY]

Codedog33000 and stuffle69 - Did either of you figure out how to correct this issue? I’m having same issue with BMS stage 2 HPFP.

 

[Codedog33000]

Codedog33000 and stuffle69 - Did either of you figure out how to correct this issue? I’m having same issue with BMS stage 2 HPFP.

Yes. Just replaced my lpfp this was my fix. To troubleshoot the problem and determine it was my low pressure fuel pump I attached a posi tab via Terrys instructions to the low pressure fuel pump, just replaced last weekend. This was my fix!

 

[FSTEDDY]

Yes. Just replaced my lpfp this was my fix. To troubleshoot the problem and determine it was my low pressure fuel pump I attached a posi tab via Terrys instructions to the low pressure fuel pump, just replaced last weekend. This was my fix!

Codedog33000 - Thanks for the response. Was it difficult to replace LPFP? Where’s it located?

 

[Codedog33000]

Codedog33000 - Thanks for the response. Was it difficult to replace LPFP? Where’s it located?

https://www.kstinger.com/low_pressure_fuel_pump-482.html
It was not as easy as I thought. You need a special locking ring remover tool which I got off Amazon. Also need to make sure you are less than half a tank took me and a friend about 2 hours to do all the steps correctly.

 

[FSTEDDY]

https://www.kstinger.com/low_pressure_fuel_pump-482.html
It was not as easy as I thought. You need a special locking ring remover tool which I got off Amazon. Also need to make sure you are less than half a tank took me and a friend about 2 hours to do all the steps correctly.

Codedog33000 - Just to make sure and be clear, you had a stuttering around 6k rpm as well right and this helped solve that issue? What E content are you usually running?

 

[Codedog33000]

I’m not saying this is the solution to your fix, I first troubleshooted to make sure this was what was wrong,
But I was having more of a throttle cut around 4-6k rpm

 

[FSTEDDY]

I’m not saying this is the solution to your fix, I first troubleshooted to make sure this was what was wrong,
But I was having more of a throttle cut around 4-6k rpm

Ok thanks for the info. I will trouble shoot further. But more info makes for better decisions. 👍🏻👊🏻