[witty]

Hey guys

I have a second gear pull 2k-max rpm and I will say something looks very messed up at my pulls and I cant really pinpoint where to start out. If someone can look at my logs and tell me what my main issues out of many issues it looks like are, it would be appreciated.

https://datazap.me/u/tochez/log-1656...20-21-22-28-29

https://datazap.me/u/tochez/low-pull?log=0&data=3-20

Im on mhd stage 2+

arm dp
injen cai
sec cat del
7" fmic
OEM turbos

Car is not the one on siggy

[TSilver335i]

Originally Posted by sliver 335

Hey guys

I have a second gear pull 2k-max rpm and I will say something looks very messed up at my pulls and I cant really pinpoint where to start out. If someone can look at my logs and tell me what my main issues out of many issues it looks like are, it would be appreciated.

https://datazap.me/u/tochez/log-1656...20-21-22-28-29

https://datazap.me/u/tochez/low-pull?log=0&data=3-20

Im on mhd stage 2+

arm dp
injen cai
sec cat del
7" fmic
OEM turbos

Sig has LPFP upgrade? Your LPFP is struggling in the low 40's. Need to sort that out asap. Could be possibly why the HPFP is quite low aswell.

Boost is very slow to build esp in 2nd gear, Could be leak or worn turbos. How many km's?

[witty]

Originally Posted by TSilver335i

Sig has LPFP upgrade? Your LPFP is struggling in the low 40's. Need to sort that out asap. Could be possibly why the HPFP is quite low aswell.

Boost is very slow to build esp in 2nd gear, Could be a leak or worn turbos. How many km's?

sorry LPFP is not stage 2, that is for a different car, its OEM LPFP car has 98k miles (157k km). I do have a upgraded fuel pump coming in. Turbo has no rattle and I had inspected to be in good condition. Im trying to understand why my stft are so high, and why my boost is falling so fast and my wdgc is going up to its limit.

[Saif2018]

Originally Posted by sliver 335

sorry LPFP is not stage 2, that is for a different car, its OEM LPFP car has 98k miles (157k km). I do have a upgraded fuel pump coming in. Turbo has no rattle and I had inspected to be in good condition. Im trying to understand why my stft are so high, and why my boost is falling so fast and my wdgc is going up to its limit.

Sort your fuel pumps out first, those are seriously low psi's hopefully it's just the LPFP that's failing, otherwise you'll probably need a new HPFP as well.

[witty]

Originally Posted by Saif2018

Sort your fuel pumps out first, those are seriously low psi's hopefully it's just the LPFP that's failing, otherwise you'll probably need a new HPFP as well.

Originally Posted by Saif2018

Sort your fuel pumps out first, those are seriously low psi's hopefully it's just the LPFP that's failing, otherwise you'll probably need a new HPFP as well.

it's very weird since the cars not giving any problems while starting up and or idling. it stays at a constant 72 but once on wot it drops hard. I am getting a 2AAF code. i will tack up a 535 walboro pump and i'll soon let you guys know what it is. do you know if fuel causes my wgdc to be basically maxing out at higher rpm's?

[Saif2018]

Originally Posted by sliver 335

it's very weird since the cars not giving any problems while starting up and or idling. it stays at a constant 72 but once on wot it drops hard. I am getting a 2AAF code. i will tack up a 535 walboro pump and i'll soon let you guys know what it is. do you know if fuel causes my wgdc to be basically maxing out at higher rpm's?

Could be due to a boost leak, but I'd fix the fueling issue first before worrying about boost

[Mustafa.e92]

Like others have said, low lpfp will starve the Hpfp which starves and injectors hence the car throwing more trims at it trying to make up. I was also debating about getting a 525 but ended up going dual 450. Less load on the ekp

[witty]

update

put an upgraded Walbro 535 in and now I'm having even more significant issues, new lpfp was reading about 40-50 psi on idle. and would studder as soon as I hit the gas. I started it today, and now its even worse (at 32-29 psi) It now dies on idle. I don't know what the issue could be. when I let the car sit for a while, it builds the psi back up to around 69-73 psi but once I start the car it goes straight to 35-30. Faulty fuel pump? Got it from summitracing

[TSilver335i]

Originally Posted by sliver 335

update

put an upgraded Walbro 535 in and now I'm having even more significant issues, new lpfp was reading about 40-50 psi on idle. and would studder as soon as I hit the gas. I started it today, and now its even worse (at 32-29 psi) It now dies on idle. I don't know what the issue could be. when I let the car sit for a while, it builds the psi back up to around 69-73 psi but once I start the car it goes straight to 35-30. Faulty fuel pump? Got it from summitracing

Thats no good. Could be the EKP module

[witty]

Originally Posted by TSilver335i

Thats no good. Could be the EKP module

check my codes, and not getting any EKP module overheating or anything. Usually, if an EKP overheats, your car won't start up right away, but my car starts up right away every time. Im not completely unruly the EKP issue but, I don't feel like could be without it producing any codes right?

[Saif2018]

Originally Posted by sliver 335

check my codes, and not getting any EKP module overheating or anything. Usually, if an EKP overheats, your car won't start up right away, but my car starts up right away every time. Im not completely unruly the EKP issue but, I don't feel like could be without it producing any codes right?

Have you changed out LPFP sensor?

[witty]

Originally Posted by Saif2018

Have you changed out LPFP sensor?

not yet although my sensor read just fine on the other fuel pump. Would the sensor give out whenever i had installed the new one? I will try to take it out today and see if i had mess up with anything. maybe not enough power you jt to the pump because it's not on together or something.

[witty]

update found out it was because the fuel pump connection keeps coming loose because the wire that connects to the tophat glue doesn't stay on. I had fixed it but today, it happened again, does anyone know a shrink wrap that is fuel resistant? It seems like fuel eats through the shrink wrap.

[Dave92N54]

Are these logs with the 19Ts in your sig? I wouldn't rule out a boost leak either...

Boost build is very slow and 11psi at redline with 80% WGDC seems very high to me?

[witty]

Originally Posted by Dave92N54

Are these logs with the 19Ts in your sig? I wouldn't rule out a boost leak either...

Boost build is very slow and 11psi at redline with 80% WGDC seems very high to me?

sorry, its not the siggy, its OEM turbo (diagnosing my friends car rn), so the issue I have now is I've fixed it and am posting a log soon, Im getting about 73% wgdc at redline now. I will send a new log tomorrow or later today, if anyone wants to look at it.

[witty]

Update:

Just did a 3rd gear pull to redline

https://datazap.me/u/tochez/log-1657...a=3-4-11-19-20

Can anyone tell me anything wrong with this log, other than I'm assuming a pronounced boost leak somewhere?