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Author Topic: LTFT issus  (Read 58390 times)
10101011
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« Reply #75 on: August 17, 2016, 09:25:12 AM »

It did turn in to a troll thread for a bit  Sad . I am at part fault for that . 
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ktm733
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« Reply #76 on: August 17, 2016, 09:25:47 AM »

Don't..
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ktm733
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« Reply #77 on: August 17, 2016, 09:29:21 AM »

Don't..

First log, 2000 to redline.
next log was city cruising which we hit traffic but thought I would just show you the data while we cruise. During the cruise he went wot for a second and you'll see lambda go crazy.
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10101011
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« Reply #78 on: August 17, 2016, 10:37:44 AM »

GREAT !! Grin . one more request , can you get me MVB 111 ?  That MVB shows the n75 adaptions .
I did notice the timing chain has stretched . 9deg is showing a worn chain or if a chain service was done wrong . The timing chain correlation should be less than 2deg if new or replaced new parts.

I believe each tooth on the cams are 8deg apart . There are 45 teeth on each cam gear and if i did the math correct i think the chain has jumped or the chain has stretched. I am not saying that is the problem with the fueling but it will be a problem in the future.

after looking at the logs it does NOT look like the rear main seal is the problem . can you get the MVB 111 and lets see the n75 adaptations  Cheesy   
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gman86
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« Reply #79 on: August 17, 2016, 11:03:33 AM »

Don't..

If it's adding fuel then it's drawing air or MAF scaling is out. Stock intake? Too much shit in this thread to keep track:

1) Any hardware changes?
2) Any software changes?

Charge regulation makes no difference. If it was leaking boost then it would pull fuel, not add.
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nyet
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« Reply #80 on: August 17, 2016, 11:08:20 AM »

If it was leaking boost then it would pull fuel, not add.

Unless the leak is post MAF, pre turbo inlet (vac)
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ktm733
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« Reply #81 on: August 17, 2016, 11:18:23 AM »

One more time guys.
1:stock everything, except intake pipe which yes could mess the mass airflow reading up but disconnecting the maf and logging it shows identical results. Will post fuel corrections with maf unplugged. Which would lead me to think leak after map sensor. I smoke tested and pressure tested to find no leaks. Will log in just a sec.
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ktm733
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« Reply #82 on: August 17, 2016, 11:20:29 AM »

http://nefariousmotorsports.com/forum/index.php?topic=11089.30

On this page I posted logs with maf unplugged.
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vwaudiguy
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« Reply #83 on: August 17, 2016, 11:21:15 AM »

Yet I'm very mithotical about diagnosing something

Sorry.
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gman86
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« Reply #84 on: August 17, 2016, 01:43:28 PM »

Unless the leak is post MAF, pre turbo inlet (vac)

So not a boost leak then  Wink
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gman86
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« Reply #85 on: August 17, 2016, 01:44:51 PM »

One more time guys.
1:stock everything, except intake pipe which yes could mess the mass airflow reading up but disconnecting the maf and logging it shows identical results. Will post fuel corrections with maf unplugged. Which would lead me to think leak after map sensor. I smoke tested and pressure tested to find no leaks. Will log in just a sec.

Disconnect MAF and clear fault codes, then log
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gman86
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« Reply #86 on: August 17, 2016, 01:48:02 PM »

Disconnect MAF and clear fault codes, then log

Also, is your intake designed for a K03 or K04 car? K04 cars have a bung just after the MAF for the DV recirc hose. It's not uncommon for those to leak and it would be a post-MAF leak.
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Carsinc
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« Reply #87 on: August 17, 2016, 07:06:00 PM »

Have you posted a pic of your engine?
Have you replaced your maf?
What intake is on the car? some of the cheap china ones, have incorrect maf housing size.
Well I say size but I kinda have always thought it was a shape thing or maf placement.
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10101011
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« Reply #88 on: August 17, 2016, 07:09:44 PM »

What is MVB 111 reading
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ktm733
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« Reply #89 on: August 17, 2016, 08:19:24 PM »

For some reason it won't let me upload the picture. Either way none of the blocks were over 3% so in spec. Guys you keep worrying about the intake or maf! Do you understand what happens when you erase a code and unplug the maf? It runs off the map readings! I've covered this base already. I've even possession log with maf unplug and cleared values to show you the facts. I honestly am a little worried about the cam timing. The timing marks line up, so this means my chain has skipped a tooth/horrible slack. Yet it sets no code and runs pretty well? The cam sprocket being in time means the intake cam is off a tooth. Is it possible being off one tooth could throw off the injection time? Causing this whole thing?
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