fknbrkn
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mk4 1.8T AUM
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« Reply #75 on: January 30, 2023, 10:00:55 AM »
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Return pdks axis to stock also, seems thats not wot
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LynixGO
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« Reply #76 on: January 31, 2023, 01:21:27 AM »
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Hello.
I think the diverter valve is the issue here.....
what if the DV output on the intake is to small e.g. 15mm instead of 25mm?
this could not get the pressure away fast enough at higher boost levels?
im i correct
this could also mean limp mode at higher rpm's
i also figured out when i hit limp i have to press the clutch pedal for atleast 10 seconds (so it drops to 7 a 800 rpm) before the boost is coming back. sometimes i have to switch off ignition for boost to return.
i raised the kfvpds axis higher this fixed the part throttle issue no more limp mode from that
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LynixGO
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« Reply #77 on: January 31, 2023, 01:46:26 AM »
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i added a image of what i meant, on my boost pipe this is 15mm quite small....  |
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prj
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« Reply #78 on: January 31, 2023, 08:46:12 AM »
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WTF is that?
The entire thing looks tiny. And yeah DV should not be 15mm...
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« Last Edit: January 31, 2023, 08:47:49 AM by prj »
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LynixGO
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« Reply #79 on: January 31, 2023, 08:51:27 AM »
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Picture is from google.
i will go to a local welder and weld in a 27mm DV outlet on the boost pipe.
apart from that why is my car still going in limp in high RPMS.....
i will make a new log with new DV outlet
just out of words tried everything, KFLDIMX is also now lower and is also following the requested boost not overboosting in log
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Blazius
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« Reply #80 on: January 31, 2023, 09:39:17 AM »
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i added a image of what i meant, on my boost pipe this is 15mm quite small.... The stock DV's are 25mm/1 inch. It should be atleast that.. |
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LynixGO
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« Reply #81 on: January 31, 2023, 10:01:12 AM »
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Yes that is what i thought so, weird they even makes these boost pipes for 1.8t with smaller DV outlet....
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prj
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« Reply #82 on: January 31, 2023, 11:37:22 AM »
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Yes that is what i thought so, weird they even makes these boost pipes for 1.8t with smaller DV outlet....
This pipe looks way too small from picture as well. Stock K03 size? Maybe picture shows it that way idk. |
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LynixGO
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« Reply #83 on: February 02, 2023, 03:57:45 PM »
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Hello, I switched the wastegate yellow spring for green spring (0.4 bar to 1 bar) i made new log lambda is holding on to 0.75 going limp.... this is always the case also with yellow spring in wastegate  can someone explain me what is happening im not overboosting anymore also found this fault code in ECU this is not always showing it also popped up with overboosting with old yellow spring  i hope someone can explain me what i can do to fix this issue. i can try to tune the car myself Kind regards. |
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prj
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« Reply #84 on: February 02, 2023, 04:31:28 PM »
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Start from stock file so you're not running 8+ deg kr on boost... Certainly don't try to do anything with this crap tune, stock will probably run way better.
As I said before, you will probably need to change the rods in this engine (or buy a new block when it will let go, since they're 99% already bent).
And read. A lot.
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LynixGO
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« Reply #85 on: February 02, 2023, 04:38:05 PM »
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I just wanna find out what is triggering this 0.75 lambda....
im not gonna buy a new engine or take it all out, its not worth the time / money
the car is entirely stripped. i just wanna drive it in weekends or in summer just for fun
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nyet
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« Reply #86 on: February 02, 2023, 04:45:24 PM »
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you'll never figure anything out with that approach.
start from stock, change *one thing at a time*
Yes, this is different from what you have been doing.
No, what you have been doing is totally wrong - i.e. change a million things then try to figure out what is wrong.
If you fail to follow this advice, forget about getting any other here.
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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LynixGO
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« Reply #87 on: February 10, 2023, 02:44:01 PM »
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Hello people I can finally tell why my car is going limp mode and throwing P0299 code See video below: https://youtube.com/shorts/1yMD1dpdy5g?feature=shareThis seems to be the issue fortunately the turbo seller is going to fix this issue because i have this limp mode issue since day 1 Brand new turbo…. Always double check the parts before u install it in the car this took me 8 months to figure out  I will update when the new turbo wastegate is in |
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prj
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« Reply #88 on: February 10, 2023, 03:14:56 PM »
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This does not fix your crap tune.
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LynixGO
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« Reply #89 on: February 10, 2023, 03:38:27 PM »
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I know but he tuned it with this wastegate
So he could not properly tune it …..
He would retune it for free after i installed the wastegate
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