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Scion tC 1G Forced Induction Turbo and supercharger applications...

another reason not to use e-manage

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Old 02-11-2008, 02:24 PM
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Originally Posted by HyPn0TiC
Brett, if you need an intake mani I have a second one sitting at my house. If you want it let me know. We can work something out.
thanks alot bro. but etsnet is hookin me up. i'll let you know if i need a third.
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Old 02-11-2008, 04:56 PM
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Originally Posted by rodlandscion
This has nothing to do with the emanage. I think you have an injector leak. what happens is the fuel leaks in to the engine and it gets built up. When you turn the key you have a pre ignition spark plug discharge and that was just enough to ignite whatever fuel was in the engine. Luckily we have those composite manifolds otherwise you probably would have blown your oil pan off lol...
This is correct, no piggyback will cause your intake manifold to blow. I'm sure that if you were just running the stock ECU the same would happen.

The coil packs on the tC are borderline bullet proof. How do you know yours went bad, did you thoroughly test them? There are times I thought my coil packs had gone bad, but it always turned out to be spark plugs or an intake leak after doing extensive testing.

Originally Posted by brett561tc
whatever the reason was, i highly suggest that everyone turn their car on and let it run everyday. the only times that this has happened is when i
dont run my car for a while.
Not necessary, but never a bad idea. My tC had sat for almost 6mos (with RC Engineering injectors and e-manage ultimate) before I had the chance to turn it over again.
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Old 02-11-2008, 05:17 PM
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the coilpacks have gone before, and yes they were tested. i think its weird that this only seems to happen to cars with e-manage blue.
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Old 02-11-2008, 06:23 PM
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Originally Posted by brett561tc
the coilpacks have gone before, and yes they were tested. i think its weird that this only seems to happen to cars with e-manage blue.
How did you test them?
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Old 02-11-2008, 06:38 PM
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Originally Posted by jwaggz82
Im not sure what to say - my car so far has no issues w/ the eman ult.
x2
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Old 02-11-2008, 07:37 PM
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my shop tested them. i think by pulling the efi fuse, the the coilpack w/plug, holding them close to the valve cover, turning the motor, and checking for an arc.
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Old 02-11-2008, 07:41 PM
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i talked to a mechanic at the dealership today, and asked if it was possible to change the manifold without pulling the motor. he said yes, but its gona be a pita. so that will save me alot on labor.
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Old 02-11-2008, 07:42 PM
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Originally Posted by brett561tc
my shop tested them. i think by pulling the efi fuse, the the coilpack w/plug, holding them close to the valve cover, turning the motor, and checking for an arc.
What's the name of this place, so I can make sure I never go there.
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Old 02-11-2008, 07:45 PM
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Originally Posted by CarbonXe
Originally Posted by brett561tc
my shop tested them. i think by pulling the efi fuse, the the coilpack w/plug, holding them close to the valve cover, turning the motor, and checking for an arc.
What's the name of this place, so I can make sure I never go there.


like i said. i think thats how they did it. i wasnt there when it happened. how should they be tested?
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Old 02-11-2008, 07:51 PM
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Originally Posted by brett561tc
Originally Posted by CarbonXe
Originally Posted by brett561tc
my shop tested them. i think by pulling the efi fuse, the the coilpack w/plug, holding them close to the valve cover, turning the motor, and checking for an arc.
What's the name of this place, so I can make sure I never go there.


like i said. i think thats how they did it. i wasnt there when it happened. how should they be tested?
With proper ignition testing equipment. I can't remember the name of the things, we used them back at my school...it's just a computer with software on it that has an amp pickup and a cap that goes ontop of the coil. And depening on the results, it can tell you whats wrong with it, ranging between bad wires(yes I know we don't have wires), spark plug gap, coils...makes life easy. Doing the Arc test can easily destroy the ECU if it arcs to a connector instead of the block...I'm sure they didn't do that for the test, but there are a lot of mechanics out there who need to become technicians.
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Old 02-11-2008, 07:52 PM
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voltage meter.
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Old 02-11-2008, 07:53 PM
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Originally Posted by CarbonXe
Originally Posted by brett561tc
Originally Posted by CarbonXe
Originally Posted by brett561tc
my shop tested them. i think by pulling the efi fuse, the the coilpack w/plug, holding them close to the valve cover, turning the motor, and checking for an arc.
What's the name of this place, so I can make sure I never go there.


like i said. i think thats how they did it. i wasnt there when it happened. how should they be tested?
With proper ignition testing equipment. I can't remember the name of the things, we used them back at my school...it's just a computer with software on it that has an amp pickup and a cap that goes ontop of the coil. And depening on the results, it can tell you whats wrong with it, ranging between bad wires(yes I know we don't have wires), spark plug gap, coils...makes life easy. Doing the Arc test can easily destroy the ECU if it arcs to a connector instead of the block...I'm sure they didn't do that for the test, but there are a lot of mechanics out there who need to become technicians.
good info to know. thanks
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Old 02-11-2008, 07:55 PM
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Originally Posted by brett561tc
good info to know. thanks
Yea, it's pretty easy stuff to use, it just costs a fortune .

Also, are you looking into getting an OEM manifold or going for a more durable one?
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Old 02-11-2008, 07:55 PM
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regaurdless, im sure the coilpack went bad. the car was only firing on 3 cylinders, and i couldnt rev above 2800 rpms. once the coilpack was changed it was fixed instantly.
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Old 02-11-2008, 07:57 PM
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Originally Posted by CarbonXe
Originally Posted by brett561tc
good info to know. thanks
Yea, it's pretty easy stuff to use, it just costs a fortune .

Also, are you looking into getting an OEM manifold or going for a more durable one?
oem for right now. why? you know where i can get a good deal on a sheet metal one? :D
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Old 02-11-2008, 07:58 PM
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No, I was hoping you knew . If I run the boosted setup I want to, I know I'm going to blow the manifold within the first 50 full spool ups.
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Old 02-11-2008, 08:01 PM
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Originally Posted by CarbonXe
No, I was hoping you knew . If I run the boosted setup I want to, I know I'm going to blow the manifold within the first 50 full spool ups.
stock is fine. boost had nothing to do with the untimely demise of my intake mani. i was running 18-20 psi of boost daily through mine.
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Old 02-11-2008, 08:04 PM
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Originally Posted by brett561tc
Originally Posted by CarbonXe
No, I was hoping you knew . If I run the boosted setup I want to, I know I'm going to blow the manifold within the first 50 full spool ups.
stock is fine. boost had nothing to do with the untimely demise of my intake mani. i was running 18-20 psi of boost daily through mine.
With the drop in compression, what kind of fuel are you running for 18lbs?
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Old 02-11-2008, 08:05 PM
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Originally Posted by CarbonXe
Originally Posted by brett561tc
Originally Posted by CarbonXe
No, I was hoping you knew . If I run the boosted setup I want to, I know I'm going to blow the manifold within the first 50 full spool ups.
stock is fine. boost had nothing to do with the untimely demise of my intake mani. i was running 18-20 psi of boost daily through mine.
With the drop in compression, what kind of fuel are you running for 18lbs?
93octane. no water/meth yet.
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Old 02-11-2008, 08:07 PM
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Originally Posted by brett561tc
Originally Posted by CarbonXe
Originally Posted by brett561tc
Originally Posted by CarbonXe
No, I was hoping you knew . If I run the boosted setup I want to, I know I'm going to blow the manifold within the first 50 full spool ups.
stock is fine. boost had nothing to do with the untimely demise of my intake mani. i was running 18-20 psi of boost daily through mine.
With the drop in compression, what kind of fuel are you running for 18lbs?
93octane. no water/meth yet.
Hmm, I guess I should be okay with JE 9.0:1 pistons then (on 16-18psi). I was hoping that I wouldn't need any additives to get it to run nicely.
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