Well I've recently put my car back together... it has a fully built motor, SBR 35R turbo kit, and the AEM standalone. For some reason I dont seem to be getting a strong enough spark in cylinders 2 and 3. The car will give you a sloppy idle, I assume it's running on two cylinders. When i run it a second and pull the plugs, the plugs from cylinders 2 and 3 are dripping with fuel and 1 and 4 are black and hot. I have tried replacing the 2/3 coil, rewiring the coils, and using the stock ecu. The only other thing I did was replace the broken crank sensor with one from a 96 talon tsi, it looks exactly identical except the wires are shorter, maybe this is the problem but I wanted a second opinion since the sensor for the Evo is only available from the dealer, and that's not cheap as we all know... thanks.

 

might be a longshot but have you tried different wires?

 

I tried new factory wires, magnecore wires, three sets of plugs, several plug gaps, and two new coils

 

I have no clue as to what it could be other than the crank sensor. Especially since I have replace everything, rewired it, used the stock ECU and it still does the sam thing.

 

Ummm.....did you put them in the right firing order? I see people do this all the time.

 

Man i had the same problem.If you are talking about missfire.Just buy 4 coils system and will forget about this problem

 

Were I you, I'd get to the bottom of this problem before throwing more aftermarket parts into the mix. Something is obviously wrong here, and it's not that you're over-extending your stock ignition at idle. If you know for a fact that the crank sensor is broken, replace it with an OE unit and see what happens. Of course, also check all your connections and grounds as well. If it was running fine before, I'd guess that it's either that sensor or that something is unplugged.

Just my .02

Best of luck with it!

 

could my 272 cams be an issue, should I make some adjustment on my cam gears? I have them set to a stock setting now. I assume I'm getting good spark to cylinders 1 and 4 because the plugs get hot and the tops of the pistons are black and the motor will idle (sloppy but it idles). Looking at cylinders 2 and 3, I can still read te letters on the top of the pistons and they are clean as when I installed them, the porcelin on the plugs is not dirty either. With new coils, plugs, wires, everything rewired, and no luck with the factory ECU or the AEM I'm pretty lost. Does anyone know if there is a difference between a 96 Talon crank sensor and a 03 Evo VIII crank sensor, I'm using the one from the talon... it looks identical and the harness plugged right in.

 

Well see if you can get an evo crank sensor (or bnorrow one from a friend to trouble shoot)
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