yeah i checked that website out,. i dont understand the counting of,. blink blink blink blink,. lol,. i just cant figure it out,. its kinda confusing too me.
hmm need help,. hitting fuel cut at STOCK Boost levels
- Thread starter Nihiliz
- Start date
Just connect TE1 and E1(and let those stay connected), go turn on the ignition and see the egnine light. If its blinking simultaneously without any pauses everythings OK. If the engine light blinks lets say 5 times in a row and then pauses, and then blinks 3 times in a row, the code is 53. It not hard 
supradjza80;1527717 said:
Okay....how?
jdub;1464001 said:
From the post I linked to...
Also it's worth noting that the OP in that thread did claim to have fixed the problem after putting on a new turbine discharge gasket (to stop the exhaust leak).
thanks so much dude about the blinking,. i def understood that,. and car is fixed,. was the turbo/elbow gasket,. got a new one,. car runs fucking amazing, and strong,. thanks everyone,. i love you guys
Funny shit is, I'm in the same boat. Everything was fine until I heard the exhaust get a bit louder near the engine. Since reading this, I will check my gaskets there and see if it's FUBAR. I doubt it for some reason though since it is a piece of metal in there..... Will have to check though. I can't get above 6psi and it is steadily dropping too. I was able to hit 14-16 no problem.
Turbo to dp i dont see a problem with spooling. Turbo to exhaust manifold or exhaust manifold to head leaking you would have a problem with spooling.
ben1984j;1527743 said:
Alright, so think of a leak after the turbo effectively reducing exhaust pressure after the turbo (similar to putting on a big exhaust). Now lets say you run a big mouth DP which eliminates the stock elbow, that is going to flow more and reduce exhaust pressure post turbine more than a factory downpipe with elbow where one of the gaskets leak. Now, with a big exhaust/or a HUGE exhaust leak you are making the turbine more efficient, thus reducing the point/boost pressure that fuel cut occurs (FC is all due to engine aiflow, more flow at x psi = that much closer to FC).
Now if the OP is REALLY at stock boost 6/7 psi you could run the exhaust wide open (no DP), which btw is not recommended, and the car will not hit fuel cut if everything else is correct. Yes the exhaust has a minor effect on Fuel cut, but if somebody has a car which is FC'ing at stock boost they have a boost leak or some other problem and that is the cause.
Now I know this since I run a huge exhaust on my car and I also had boost leaks. the car used to FC at 8psi. fixed all boost leaks and my car with a 3.5" straight pipe off a BIC DDP does not FC until 11-14 psi based on the temperature and other atmospheric conditions. Notice how much higher this is than 6 psi.
To the OP, I would recomend still checking your charge piping for leaks as it is likely that your cause for the FC if you are at stock boost is still not fixed. Waiting for the "oops, I was wrong and its not actually fixed post".
Thanks for the explanation, that makes perfect sense. I must have been really tired when I posted
Of course you're right (as I'm sure you don't need me to tell you) that it will reduce exhaust pressure, or resistance to flow. Don't know why I had never thought of it this way before. I appreciate the info and clarification.
....of course the exhaust gases are coming from the manifold and there will not be any less of them to spool the turbo with a (post-turbo) exhaust leak. And I see now that it's not a case of metered air escaping, as in a boost leak, since the same volume of air will still pass through the engine. ::dunce:: (Boost leaks can only occur after the throttle body and before the engine, right?)ben1984j;1527704 said:
Of course you're right (as I'm sure you don't need me to tell you) that it will reduce exhaust pressure, or resistance to flow. Don't know why I had never thought of it this way before. I appreciate the info and clarification.
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Poodles;1528389 said:
come on poodles, the op said he was hitting FC at 2 psi too, think about it...for that to be happening something completely unrelated to the exhaust is wrong.
What...if this were the case than every stock car with a performance DP would FC. a gasket leak in the exhaust will not have a large effect on fc and definitely will have less of an effect than a performance DP. I am done with this.
well thats all it was,. did boost leak test. nothing. changed the gasket. its running,. and runs amazing. just turned the boost up to 10psi today,. and boy do i love it
Your using the stock gauge? That gauge takes about a full 2 seconds to register boost. You were spiking to a higher boost pressure.
Turbos work off of a pressure ratio across the turbine wheel. The wastegate spring is calibrated for the proper boost level for a stock car. When there is less resistance to flow after the turbine wheel, the same force before the turbine wheel will cause the turbo to spin faster increasing boost. This is the explanation of increased boost by installing a large exhaust.
The exhaust leak was most likely causing a similar effect if it was a large leak. The problem was compounded by using the stock boost gauge to try to accurately determine manifold pressure.
Turbos work off of a pressure ratio across the turbine wheel. The wastegate spring is calibrated for the proper boost level for a stock car. When there is less resistance to flow after the turbine wheel, the same force before the turbine wheel will cause the turbo to spin faster increasing boost. This is the explanation of increased boost by installing a large exhaust.
The exhaust leak was most likely causing a similar effect if it was a large leak. The problem was compounded by using the stock boost gauge to try to accurately determine manifold pressure.
supradjza80;1528543 said:
I really think he was only THINKING he was hitting FC, he said multiple times he only hit a few psi. If the leak was bad enough then there wouldnt be enough exhaust flow to build more boost.
The OP really needed to post the codes he pulled to help facilitate it.
QFT. I entirely forgot to ask about the gauge being used... it's been so damn long since I tried to rely on the stock gauge I had nearly forgotten about it's deathly slow reaction time.nosechunks;1529289 said:
MKIIINA;1529352 said:
The leak was post turbo, The leak wouldn't increase lag, if anything it would reduce it. He was hitting fuel cut but at a much higher then stated boost pressure.