Alright hopefully I'm in the right place to post this

So I'll begin to say I'm useing a logger (palm with mmcd)


known issues is that I'm still useing the turbo fpr (I'm turbo to non turbo swapped) Whitch might be the issue itself can't afford a new nt one atm.

the one I got used failed on the junk yard car I got it off of I guess

So I've been haveing to reset my ecu to bring back the fuel trims to 100

And when I went on a road trip to shoot some stuff I got 28 miles a gallon ( 12 km a litre) and my fuel trims stayed 100% the whole time .... until I dropped my buddie off then all the sudden my fuel trims started to count up almost like a clock 101,102,103,104,105 ect.. in a matter of seconds
I was like cmon

Some other known things is my flex pipe that I replaced for safety two years ago pretty much unseated itself (pic below) not sure if the leak caused gases to go inside my intake and started raising hell cause its most likley been like that when it started not sure tbh

I'm running nt injectors with resister delete plug now and nt ecu but with the turbo fpr solenoid and fpr
not getting any check engine lights even know my fuel trim long term is maxed out at 139% I've tried to see if something is triggering it so that I can figure out what's up , but I'm pretty stuck now to be honest , so has any one had similar issues? (I did notice it starts when I take off not idling so far)

Ill be bandaidin the flex pipe with Teflon high temp tape and will be buying a brand new fpr asap and welding a new flex in

So what's causeing me to lean out my fuel trims? I may have anwnsered my own question I didn't wanna make a thread unless I needed to but it's getting annoying trying to figure out I've been told replace the fpr (obv) but will that fix it like 100% forsure?

Any help appreciated thanks



Ignition timing is at 7 degrees (I know should be five)

I'm gonna rewire my coolent temp sensor with the factory plug that I got

And car feels sluggish till around 2500 rpm (I'm useing the turbo auto tranny) it was rebuilt along with new head gasket, alt, starter , short block and head and mechanical timeing was spot on when the timing belt was replaced hopefully that's a good enough back storey sorry for the long post !

You know the n/t fuel pressure is something like 48psi while the turbo 1g is I believe 37 so essentially you would be getting less fuel than you need. Thats why your ecu is at 139% fuel trim. 100% is normal so it is trying to add an additional 39% to get the fuel trims correct.

Yes you are correct on that one I'm adding 39% more fuel , the other trims are perfect at 100% it's just my long term trim is funky , curt-s told me to replace that fpr (I'm dead set on doing the replacement just have to wait till I'm not broke ) so a turbo fpr won't cause the other trims to move?

but yeah I just wanted confirmation , will there be anything else that can cause the long term to be funky ?
Thanks for the reply

Honestly not too sure about the NT ecu. I would think the other fuel trims would be out of wack too but I am not sure if the NT ecu registers the other fuel trims or if it just takes a calculated average or something. If I go to the junk yard I'll grab a NT fpr for you but with 100+ degree days it might not be soon enough (107 right now ), or if shipping to the land of Canada is too steep (never dealt with that) it might not be worth it. Is there not a lot of junk yards there?

We have to many wreckers down springfeild only talons are turbo ones not many nt ones around here there all full of cavilers and sunfires

Does any car share the fpr that you no of? There was a dodge stealth last time I was at bucks

That I know of... no. But maybe some Hyundai's (4g63)will share a fpr since there are some that are basically NA 4door dsms. (I don't know what years or models off hand)
I don't know what the stealth/3000gt fuel pressure is but this guy below in the link says they fit. But I doubt fuel pressure is high enough for a NT.
http://www.3si.org/forum/f11/i-believe-dsm-fprs-will-bolt-onto-our-dohc-fuel-rails-221478/

Yeah I'm just gonna order a new one when my credit card comes in the mail I got the pin today so should have it ordered asap if I can find one let's hope it solves my fuel trim issue and maybe I'll get better gas milage or something